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 o Substance cal/g/ C will reach the higher temperature? Explain why. Water 1.000 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. Aluminum 0.215 Marble 0.205 Glass (typical) 0.200 Iron/Steel 0.108 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? Silver 0.0564 Mercury 0.0330 Gold 0.0310 Lead 0.0305 8. Find the heat (in calories) involved when cooling 20 g of aluminum from 95°C to 90°C.
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