Temperature Vs Rate of Reaction Essay

Custom Student Mr. Teacher ENG 1001-04 16 November 2017

Temperature Vs Rate of Reaction

Research Question: Does temperature affect the rate of reaction between two substances?

Dependant Variable: Rate of Reaction of solution

Independent Variable: Temperature of Reactants

Controlled Variables

Both reactants must have the same temperature

the same amount of both reactants must be used for each trial

The same calorimeter must be used throughout the experiment the same color slide on the calorimeter must be used throughout the experiment

The reactants must not be contaminated before the reaction takes place

Materials

80ml H2S204 0.25 mol solution

80 ml HCl 1 mol solution

Calorimeter (with plastic containers)

Beakers (500ml and 250ml)

Test tubes

Graduated cylinders

Eyedroppers

Stopwatch

6x Thermometres

Ice

Procedure

Because I started my experiement with 1 mol solution of H2S204 I had to dilute it down to 0.25 mol

Prior to the experiment, half an hour before starting turn on the calorimeter

1. Measure 6ml of HCl and place it in a test tube

2. Using a different graduated cylinder measure 6 ml of H2S204 and place it in a separate labeled test tube

3. Get the 500ml Beaker and fill it water at 6 degrees Celsius ( If tap water isn’t cold enough add ice)

4. place the test tubes in the cold water and let sit, place a thermometer in each test tube

5. When the test tubes and water are all at 6 degrees take 2ml of HCl and place it in the calorimeters container

6. Take 2ml of H2S204 and pour it in with the 2ml of HCl, as soon as you start pouring start the stopwatch

7. When the opacity of the substance is 0 stop the stopwatch and record the data

8. repeat last two steps for the next two trials

9. Repeat steps 1-8 for the water at different temperatures (16 degrees, 26, degrees, 36 degrees and 46 degrees)

Datatable

Temperature of reactants (C) +- 0.05

Time taken for the reaction to finish (s) +- 0.001

Conclusion and Evaluation

The data shows that there is a connection between the rate of reaction and the temperature of the reactants. And this makes sense because if the particles are hotter, they have more energy, and therefore when reacting with other particles they have greater chances of overcoming the activation energy. Some things that could be improved for this lab is that the temperatures could have been from a wider scale. Also an important thing to note is that because the eyedropper was not long enough to use to insert the substances into the calorimeter, that the solution reacted differently when poured than when squirted together. Perhaps with the eyedropper the values would be more accurate. Thirdly if we had a larger calorimeter we could use greater amounts of reactants, meaning that reactions would take longer and the discrepancies between the reaction rates would be greater.

Free Temperature Vs Rate of Reaction Essay Sample

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  • Subject:

  • University/College: University of Chicago

  • Type of paper: Thesis/Dissertation Chapter

  • Date: 16 November 2017

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