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In this assignment, I conducted an experiment using cooling curves to analyze the rate of cooling of substances. I obtained data using provided equipment to construct cooling curves and subsequently analyzed the rate of cooling to draw conclusions. Additionally, I evaluated the accuracy of my practical work in relation to the analysis of cooling curves. Furthermore, I calibrated the thermometers provided to ensure precise temperature measurements.
Calibration is a fundamental process to guarantee the accuracy of instruments employed in experiments, especially when measuring critical parameters such as temperature.
It ensures that instruments provide reliable and consistent readings, essential for meaningful data collection and analysis. Over time, equipment may experience variations in accuracy, making periodic calibration essential for maintaining precision and reliability in measurements. The primary goal of calibration is to minimize measurement errors by verifying the accuracy of the equipment.
If an error is displayed, repeat steps 3 and 4.
Thermometer | Mercury | Alcohol | Digital |
---|---|---|---|
Crushed Ice | 1.0°C | 0.5°C | 0.10°C |
1.0°C | 0.5°C | 0.00°C | |
1.0°C | 0.5°C | 0.10°C | |
1.0°C | 0.5°C | 0.00°C | |
Mean | 1.0°C | 0.5°C | 0.05°C |
Boiling Water | 1st Reading: 96.0°C | 1st Reading: 99.0°C | 1st Reading: 100.40°C |
2nd Reading: 100.0°C | 2nd Reading: 99.0°C | 2nd Reading: 100.40°C | |
3rd Reading: 98.0°C | 3rd Reading: 100.0°C | 3rd Reading: 100.50°C | |
4th Reading: 102.0°C | 4th Reading: 100.0°C | 4th Reading: 100.40°C | |
Mean | 99.0°C | 99.5°C | 100.43°C |
The calibration aimed to determine which thermometer type provided the most accurate readings. The digital thermometer displayed precise temperature readings, with an initial temperature of 100.4°C, making it the most accurate and reliable. The alcohol thermometer also exhibited stable readings. In contrast, the mercury thermometer showed significant temperature fluctuations for all recorded readings.
Based on the results, it is concluded that the alcohol and digital thermometers are the most accurate among the three types. The mercury thermometer displayed less precision due to its temperature fluctuations.
Thermometer Calibration and Cooling Curve Study. (2024, Jan 12). Retrieved from https://studymoose.com/document/thermometer-calibration-and-cooling-curve-study
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