Calorimeter 4Ua

1. The Change

We will compare two simple, identical calorimeters. One will have 100mL room temperature water. The other will have 100mL of frozen water. We will compare the rate at which the temperature rises.

2. Drawings and Pictures

For our set up, we had two identical calorimeters side by side. We tracked the temperatures at the same time using two thermometers; one in each can. We did them at the same time so the surroundings were controlled as best as we could.

3. Graph Your Findings

4. What Were Your Findings?

We graphed both calorimeters at the same time, on the same graph. This is our graph of our findings from both calorimeters.

Our findings told us, that no matter the form of our water, frozen, liquid or in between, the way the graph increases does not really change. The time it takes for the temperature to increase is longer in Calorimeter B because the heat energy must go towards melting the ice before it can heat the water. If we were to use ice water in liquid forms the graphs would look similar.

5. The Significance of Your Findings

We found that calorimeter A which contained room temperature water increased at a consistent rate until it reached a point where the same amount of heat left the calorimeter as was produced by the candle which created a plateau in our graph for calorimeter A. We also found that calorimeter B which contained the frozen water, increased at a slower rate until it was all melted. We found the temperature increased at essentially the same rate as calorimeter A once all the ice had melted. If we let the candles burn longer, we would have found that calorimeter B would have eventually reached a plateau as well.

6. Next Steps

For our next steps, we would try and prove our theory that the water increases at almost the same rate once all liquid. We would do this by comparing water with ice cubes in it and cold water and see if we find the same results.

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