Name ______________________________ Date ___________________________
315 Specific Heat Capacity
1. Does a substance that heats up quickly have a high or a low specific heat capacity? Explain.
2. Does a substance that cools down quickly have a high or a low specific heat capacity? Explain.
3. Why will a watermelon stay cool for a longer time than sandwiches when both are removed from
the same cooler on a hot day?
4. The desert sand is very hot during the day and very cool at night. What does this tell you about
sand’s specific heat?
Use the table below to answer questions 5-8
5. The same amount of heat is added to a sample of glass and a
sample of iron. If the samples have the same mass, which one
Substance cal/g/ C will reach the higher temperature? Explain why.
Wood (typical) 0.400
Soil (typical) 0.250 6. The temperature of a sample of iron and a sample of aluminum
Air 0.250 are each raised 10°C. If the samples have the same mass, which
one required more heat? Explain why.
Glass (typical) 0.200
7. Find the heat (in calories) involved when raising 150g of water
Copper 0.0924 from 20°C to 70°C. Was the heat gained or lost by the water?
8. Find the heat (in calories) involved when cooling 20 g of aluminum from 95°C to 90°C.