Name:

Section:

1. This experiment.
2. The appropriate sections of your textbook.

1. 10 g of water at 20 ^oC is mixed with 10 g of water at 50 ^oC. What is the final temperature of the mixture?
2. 10 g of water at 20 ^oC is mixed with 20 g of water at 80 ^oC in a calorimeter that has a relative heat capacity of 0.25/g water added. What is the final temperature of the mixture? (Hint: relative heat capacity is the ratio of the heat capacity of the calorimeter to the heat capacity of water.)
3. When 50.0 J of energy are added to a sample of 1.99 g of water initially at 25.0 ^oC, the temperature increases to 31.0 ^oC. What is the specific heat of water? What is the molar heat capacity of water?
4. The specific heat of mercury is 0.0333 times that of water. Calculate the final temperature when 15.0 g of mercury at 75 ^oC is added to 5.00 g of water at 12.0 ^oC.
5. Suppose that one does a series of experiments in which hot water is added to room temperature water in a calorimeter. Suppose one plots the results according to equation (5); that is, DT_hot is plotted against DT_cal. Explain how to determine the relative heat capacity of the calorimeter from such a plot.