Specific Heat Review Problems



Specific Heat and Calorimetry (Heat Lost=Heat Gained) Worksheet

1. How much heat is required to raise the temperature of 67.0g of water from 25.7(C to 66.0(C? The specific heat of H2O is 4.184J/g(C)

2. What is the mass of a sample of metal that is heated from 58.8(C to 88.9(C with a specific heat of 0.4494J/g(C, if Q = 4500.0J?

3. How much heat is required to raise the temperature of a 10.35g sample of carbon tetrachloride from 32.1(C to 56.4(C? The specific heat of carbon tetrachloride is 0.85651J/g(C.

4. Calculate the heat given off when 177 g of copper cools from 155.0(C to 23.0(C. The specific heat of copper is 0.385 J/g(C.

5. How many joules must be added to 10.0 g of water to raise its temperature from 10.0oC to 15.0oC?

6. How much heat is released as 5.00 g of Pb cool from 75.0oC to 25.0oC? The specific heat of Pb is 0.128 J/g(C.

5. 73.5 g of aluminum is heated in boiling water to a temperature of 98.7(C. the Aluminum is then placed in a calorimeter containing 1500.0 g of water at a temperature of 25.40(C. The temperature of the water in the calorimeter increase to a final temperature of 28.20(C. What is the specific heat of the Aluminum?

6. A piece of metal with a specific heat capacity of 0.460 J/g(C at a temperature of 100.0(C is dropped into an insulated container of water. The mass of water is 140.0 g and its temperature before adding the metal is 16.0(C. The final temperature of the water is 17.6(C. What is the mass of the metal?

7. A 5.00 g piece of metal is heated to 100.0oC, then placed in a beaker containing 20.0 g of water at 10.0oC. The temperature of the water rises to 15.0oC. Calculate the specific heat of the metal.

8. A sample of cobalt (specific heat of Co = 0..418 J/g˚C) at 200.0˚C is dropped into a calorimeter containing 50.0 mL of water at 21.1˚C. The final temperature of the water/cobalt mixture was 67.1˚C. What was the mass of the sample of cobalt?

(Hint: 1 mL of water has a mass of 1 gram)

9. Hot lead with a mass of 200.0 g of (Specific heat of Pb = 0.129 J/g˚C) at 176.4˚C was dropped into a calorimeter containing an unknown volume of water. The temperature of the water increased from 21.7˚C to 56.4˚C. What volume of water is in the calorimeter?

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