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Temperature Essay Topics & Paper Examples

Diffusion of Innovation

I certify that I am the author of this assignment. Any assistance I received in its preparation is fully acknowledged and disclosed within this document. I certify that I have not received help from any unauthorized persons. I have cited any and all sources, both print and electronic, from which I have used data, ideas, or words, either quoted or paraphrased. My cited sources are indicated within this document using APA citation style. I also certify that this assignment was prepared by me especially for the course as listed above. 1a. Product Chosen There are a few battery-powered electric jackets on the market today, but the downside of the stuff is most come with bulky heating insert with heavy batteries…

Recrystallization: Solvent and Solubility

ABSTRACT Recrystallization is the primary method for purifying solid organic compounds through the differences in solubility at different temperatures. In this experiment, a suitable solvent was first determined. Acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heating water bath. The hot solution was filtered and the filtrate, cooled slowly in an ice bath as crystals started forming out. As the compound crystallizes from the solution, molecules of other compounds were excluded from the crystals to obtain pure acetanilide. INTRODUCTION Recrystallization, referred to as the second crystallization, is a method in which two crystallization processes are performed. It is a process of dissolving the solid to be crystallized in…

Heat of Decomposition of Hydrogen Peroxide

Abstract Our main purpose is to familiarise ourselves with a method to find the heat of decomposition of a compound (hydrogen peroxide). Firstly, we will be looking at information about calorimeter and what it meant by heat of decomposition. Also, we will try to understand why we have to subtract the heat absorbed by the calorimeter to find the heat of decomposition of hydrogen peroxide. Therefore, we found the heat capacity of calorimeter. After that, the enthalpy of decomposition of hydrogen peroxide was calculated by finding the amount of heat lost by solution and the heat absorbed by the calorimeter. Then, the heat absorbed by the calorimeter was subtracted from the heat lost by the solution to determine the amount…

The Mahogany Tree

The branch of material science known as thermal analysis is the study of the change of temperature within the properties of materials. A number of different properties are studied using this method including mass, dimension, volume, stiffness, damping, heat transfer and temperature. Other concepts can be employed within the method as well, determining how temperature relates to light and sound. The main purpose of the entire discipline is to find how temperature impacts other facets of physics. When conducting experiments with thermal analysis, researchers generally control the temperature in a standardized format. This is accomplished by either keeping, increasing, or decreasing the temperature at a constant rate or working with a variety of predetermined different temperatures. Adjustments can be made…

Biology, How Body Shape Affects Heat Loss

Introduction Small organisms have a surface area that is large enough, compared with their volume. As a results they lose heat rapidly when the environmental temperature is lower than their body temperature. However when the animal gets bigger their volume increases at a larger rate than their surface area, so the surface to volume ratio decreases. Adaptations help organisms to survive in their habitats. Adaptations can be structural, behavioral and physiological. Cold resistant organisms evolved in various ways to cope with very low temperatures. Some animals hibernate, take shelter or migrate to warmer countries. Others, such as Antarctic seals have warm fur and a thick layer of fat for insulation. Antarctic seals are adapted to live in the sea and…

Science Behind the Galileo Thermometer

The Galileo thermometer, used to measure temperature, is mainly used for home décor nowadays. The stylish thermometer used in people’s homes today is based off of a thermo scope Galileo invented in the early 1600’s. Although not exact, the Galileo thermometer is moderately accurate. The thermometer has several glass blown bubbles, with a colored liquid inside which is just for decoration. The bubbles have metal tags attached to the bottom of them with an engraved number on it, for example seventy, for seventy degrees Fahrenheit. The glass bubbles float in a water filled glass tube, which may vary in size. The glass bubble floating, usually on its own in the middle of the tube, is what the temperature is approximately,…

Protective Equipment Is to Reduce Employee Exposure to Hazards

Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products.[1] Slower oxidative processes like rustingor digestion are not included by this definition. The flame is the visible portion of the fire. If hot enough, the gases may become ionized to produce plasma.[2] Depending on the substances alight, and any impurities outside, the colorof the flame and the fire’s intensity will be different. Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning. Fire is an important process that affects ecological systems across the globe. The positive effects of fire include stimulating growth and maintaining various ecological systems. Fire…

Thermistor Study

A thermistor is a type of resistor whose resistance varies significantly with temperature, more so than in standard resistors. The word is a portmanteau of thermal and resistor. Thermistors are widely used as inrush current limiters, temperature sensors, self-resetting overcurrent protectors, and self-regulating heating elements. Thermistors differ from resistance temperature detectors (RTD) in that the material used in a thermistor is generally a ceramic or polymer, while RTDs use pure metals. The temperature response is also different; RTDs are useful over larger temperature ranges, while thermistors typically achieve a higher precision within a limited temperature range, typically ?90 °C to 130 °C.[1] Basic operation Assuming, as a first-order approximation, that the relationship between resistance and temperature is linear, then: :…

Temperature-dependent impact tests

Purpose This lab was performed to fully comprehend the temperature dependency of the fracture toughness of the Aluminum and Steel. It was also executed to discover the ductile-brittle transition of each. Summary The experiment solidified the hypothesis that the 6061 aluminum has no ductile-to-brittle transition do to its FCC crystal structure. The 1018 steel has a ductile-to-brittle transition temperature of -31ºC due to its BCC crystal structure. Results Figure 1: Graph of fracture energy vs. temperature for entire class data From Figure 1 one can determine that steel has a ductile-to-brittle transition temperature at -31ºC requiring a large increase in energy required to fracture over the temperature range. Also it can be determined that aluminum has no ductile to brittle…

Engineering Materials Essay on Polypyrrole

1.0 Introduction to Polypyrrole The reason of this report is to determine the effects of temperature on the thermal, physical and mechanical properties of Polypyrrole. And then conclude the possible applications of this polymer according to its properties. Known as the conducting polymer, it is a black insoluble material according to Richard Doyle (2011), usually in the form of a thin film. It was the first polyacetylene-derivative to show high conductivity. Over the years it has become one of the most studied and extensively applied conducting polymer due to the reason being that it can be easily prepared, has high conductivity and has relatively greater stability amongst other heteroatom containing polymers. It is made up of monomers that are amines…

Yeast Population Lab Report

How Environmental Factors Affect a Yeast Population’s Ability to Reproduce OBJECTIVE The objective of this experiment is to emphasize the influence that limiting factors have on a population. This lab tests yeast, a common component in baking, against two environmental factors (changes in temperature or concentration) to see what effect these have on the population dynamics of the yeast over a period of 72 hours. There are two sections of tests included in this experiment: biotic and abiotic factors. The abiotic factor being tested here is what effect the temperature of the yeast’s environment has on its ability or inability to reproduce efficiently. The lab tests the yeast in three separate temperature settings: a cold temperature (4ᵒC), room temperature (22ᵒC),…

The Impact of Pre-Cooling as an Intervention Strategy to Minimize Cardiovascular system

The aim of this report was to investigate whether the utilization of pre-cooling (cooling vest) prior to a 10, 000m road-race run within a hot and humid environment, would result in improved performance. The report also aimed to examine any performance-related effects, and their underlying physiological mechanisms. Fourteen (n=14) well-trained adult runners participated in two 10,000m-time trials, spaced 72 hours apart. Ambient conditions of both the control and experimental conditions were T= 32.5 °C, rel. humidity= 65% and T= 32.8’C, rel. humidity= 63% respectively. Procedure consisted of a 30 minute warm up (20 minutes steady state running at RPE 13, 10 minutes individualized stretching activity). During the warm up, the control condition required participants to wear a normal tee shirt,…

Sun’s atmosphere

Dust and ice around the Sun’s atmosphere were drawn together by gravitational force to form a cold mass which we now call Earth. The heat produced by meteorite activity, compaction and radioactivity caused the earth to melt, thereby reorganizing elements of varying density into three layers called core, mantle and crust. Gases such as hydrogen, nitrogen, water vapor, nitrogen, methane and carbon dioxide escaped from earth’s gravity. These gases formed a layer around the earth called atmosphere. All these gases are made of basic units called elements, which can be further broken down to atoms. Carbon, Hydrogen, Nitrogen, Oxygen and another 21 naturally-occurring elements are critical for the existence of life on earth. As the temperature of the earth lowered,…

Concentration of enzymes

CONCLUSION: Based on the results obtained from the experiment it can be concluded that the concentration of enzymes influences the rate of a chemical reaction. If enzyme concentration is decreased then the reaction rate will also decrease. If there is sufficient enzyme to bind with substrate then the reaction will proceed fast and if there are insufficient enzymes present then the reaction will slow down DISCUSSION: It was predicted that with the increase of concentration of amylase solution, the time took to break down starch would decrease . This was proved correct , if basing on just these trials . The graph shows how with every single increase of the concentration , the amount of drops until the mixture fails…

A Misty Morning

It was one of the last days of December when I experienced a misty morning. Mist in Yangon is pretty uncommon to be seen as we have tropical weather.However, on that particular day, the whole atmosphere was covered with mist. And it lasted for a few hours in the morning. The coldness and the freshness of the atmosphere gave the energy to start a new day.It feels like living in a mountain city like May Myo.On that day, I rose earlier than usual with the freezing wind that blew into my room.Looking out of the window, the chill and the fresh smell of the winter morning welcomed me gladly.At first I was quite amazed to notice the mist.Because it was…

Weather and Mood

The weather controls every aspect of our daily lives. It influences our choices and decisions on what to wear, what to eat, and what kind of activities we should do. Ancient civilizations feared and respected the power of the weather. They created and worshiped different weather gods. During extreme weather conditions such as during dry seasons and floods, they used human sacrifices to appeal to the god of sun or to the god of the rain. Survival and biological necessity defined the relationship between men and the weather. Even with the advance of science and philosophy in the next civilizations, the study of weather was primary linked to a physiological and biological needs. Research studies with psychological approach were rare…

Global Warming: Confronting the Realities of Climate Change

Sea level rise is accelerating. The number oflarge wildfires is growing. Dangerous heat waves are becoming more common. Extreme storm events are increasing in many areas. More severe droughts are occurring in others. These are just some of the consequences of global warming, which are already having significant and harmful effects on our health, our environment, and our communities. Unless we take immediate action to address global warming, these consequences will continue to intensify, grow ever more costly, and increasingly affect the entire planet – including you, your community, and your family. GLOBAL WARMING IS HAPPENING NOW. The planet’s temperature is rising. The trend is clear and unmistakable. Every one of the past 37 years has been warmer than the…

A World Without Friction

Although friction may seem like a minor issue, its absence would chance life as we know it. There would be many negative effects of this like not being able to gain traction on any surface and your ipods earplugs always falling out. Also, there would be many positive effects, such as eliminating the need for coolant in engines and lubricant in machines. Moreover, the absence of friction would be both bad and good. Without friction, many obvious things which we take for granted would not function the way we like. Shoelaces would untie themselves, zippers would always unzip (unless they were upside-down), nails, screws, nuts and bolts would work themselves loose, and driving as we know it would be impossible….

Seperating cyclohexane and toluene

INTRODUCTION: The purpose of this experiment is to learn how to separate two miscible liquids by microscale process. There will be use of simple and fractional distillation. Simple and fractional distillation efficiencies will be compared. The student should have knowledge of how to measure volumes of chemical compounds. In addition, the student should know how to make a bent-tip pasture pipette for microscale distilltions. Distillation is commonly used in chemistry when compounds need to be seperated because of their differences in their boiling points. Many organic compounds are volatile. Meaning they have high vapor pressures and low boiling points. During distillation, volatile compounds are heated to a boiling in container known as a pot. The vapors produced are colled and…

Rates Of reaction

During this experiment I will be investigating if heating limestone and changing the concentration of the acid will affect the rate of reaction. Preliminary work Before doing our main experiment, we will have to conduct another experiment, to see what concentration of acid we will have to use. We done this using 0.1M, 0.5M and 1M of Hydrochloric acid, and 0.1g of powdered limestone, we used powdered limestone, as it would be a fairer test, I think this as all the particles of limestone will be roughly the same size, the particles have a larger surface area than cubed limestone, therefore it will react the quickest. If you were to use cubed limestone it wouldn’t be fair as no cube…

Investigation into temperature change

Introduction. The following is an experiment into temperature change in an exothermic reaction taking place between Sodium hydroxide (NaOH) and Hydrochloric acid (HCl) and also how the concentration of the acid will vary these results. The characteristics of the reaction feature a neutralisation, an energy change (shown as a temperature change) that is usually exothermic (gives out heat). The reaction of neutralisation is exothermic because of the bonds being broken and made in the reaction. When bonds are broken, energy in those bonds are taken in, and in this case, are noted as a temperature change, the temperature increasing. If it were an endothermic reaction, the temperature would lower, because the reaction is using up more energy breaking the bonds,…

What is Sublimation

1. Sublimation The transitions of a substance from the solid phase directly to the vapour phase, or vice versa, without passing through an intermediate liquid phase. 2. Sublimation is the process of a solid changing form a gas to a solid without going to the liquid state and vice versa. An example of sublimation is the ice cubes in freezer over a period of time they will begin to sublimate due to the temperature. This also happens when you place your clothes on a line outside when it is below freezing. The water freezes then sublimates and your clothes will be dry but very cold. There is one gas that changes to a solid directly at -109 degrees Fahrenheit and…

Australian ecotherms and endotherms

A- TYPES OF TEMPERATURE REGULATION 1- The cat, human and platypus could be described as true endotherms, as they all maintain a relatively constant internal body temperature that is independent of the external temperature. As the environmental temperature rises from 5C to 40C, the humans body temperature remains constant, the cat’s and the platypus’ increases by around 3▫C. 2- The lizard and echidna are ectotherms as their body temperature fluctuates according to the temperature of the external environment. The lizard’s body temperature rises by 25C and the echidna by 10C as the external temp rises. 3- All animals are either clearly ectotherms or endotherms apart from the echidna. Although the body temperature of this animal increases with the external temperature,…

The Rate of Diffusion

Abstract I found that this experiment gives me an understanding on how osmosis and diffusion works. In its simplicity, it explains the process that our bodies (mainly cells) use all the time. It also showed me that even with the temperature changing, it doesn’t drastically change the rate of diffusion. Introduction Diffusion is important in all living systems. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration (Purchon 1). Diffusion is the movement of a substance from an area of high concentration to low concentration (Biological 21). With this knowledge we tried to recreate diffusion for students to understand the process. The dialysis bags represented our selectively permeable…

Freezing Point Depression Determination

This paper is a full determination for certain chemicals and their boiling points. It lists some already but given the atomic numbers of any material this project includes a conversion and calculation chart to find the freezing point of most any material. GOOD LUCK! Abstract: In this lab we determined the freezing point, and Kf, of pure 2,4,dichloralbenzne as well as a 2,4,dichloralbenzne/biphenyl solution. We used this information to determine the molar mass of an unknown (#24) by the 3rd step in the experiment which was a 2,4,dichloralbenzne/unknown solution. All of the above we charted the time temperature for the later calculations. I. Introduction A. Background This experiment shows how one determines the temperature-composition diagram for a two-component system. The…

Investigation of the effect of the mass of Zinc

Note: I couldn’t paste in pictures and diagrams so please excuse any large spaces. Planing my investigation Method 1.Firstly I will measure 20ml of Copper Sulphate solution (CuSO4) in a measuring cylinder, for precise accuracy, and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube, for minimum heat loss. (As shown in the diagram above.) 2.Secondly I will measure the required amount of Zinc (Zn) on a weighing scale, again for precise accuracy. I will then measure the starting temperature using a thermometer. Next I will pour the Zinc into the test tube containing CuSO4. 3.Finally I will measure the final temperature using a thermometer and record the…

Thermodynamics Lab

Purpose: The purpose of this lab is to determine the identity of an unknown metal, and to prove whether the laws of thermodynamics hold when determining this identity. Using the accepted specific heat of water (4186 J/kg · oC), heat flow between two different sets of water though the conduction of an unknown metal can provide useful data in determining the identity. The heat transfers can be calculated to approximate the specific heat of the unknown metal. When heat is transferred to an object, the temperature of the object increases. When heat is removed from an object, the temperature of the object decreases. The relationship between the heat (q) that is transferred and the change in temperature (DT) is: q…

Investigation of temperature on catalase activity

The aim of this experiment is to find out the effect of temperature on catalase or hydrogen peroxide. This will enable us to tell at what temperature hydrogen peroxide is most efficient. This (degradation) reaction will help us determine some of the catalase’s different attributes. HYPOTHESIS In this experiment it would be safe to hypothesise that no activity would take place at 1 to 20 degrees. It would be probable that a little activity would take place around 40 degrees. When the water gets to around 60+ the oxygen bubbles start to froth. It is almost certain that this will happen due to the behaviour of the atom. This means that the hotter the water gets the more active the…

Project Design Plan

This experiment is to test the theory that the temperature of water affects the duration of time it takes to water to reach freezing? Hot water freezing faster than cold has been observed for many centuries. The earliest known reference to this effect is by Aristotle, who wrote: “The fact that water has previously been warmed contributes to its freezing quickly; for so it cools sooner. Hence many people, when they want to cool hot water quickly, begin by putting it in the sun. . .” (Jeng) Literature review 1. According to a study of the Mpemba effect by Monwhea Jeng Many factors impact water as it cools and eventually freezes, evaporation can contribute to a loss of mass, Hot…

Determining the Melting Point of a Substance

Questions: 1. The effect of the impurity on the mixture caused the melting point of the mixture to be lowered. 2. The reason why the melting point of a binary mixture is lowered, is due to the fact that the mixture of the two components has caused the structure of the solid to change and become less organized (not as strong). Therefore causing the mixture to melt at a lower temperature. The melting point is broadened because the mixture has more than one component present; which means it will take a longer period of time to melt, because there will be more than one solid structure to break down, therefore broadening the melting point of the mixture. Compared to the…