Heat Capacity Practice Problems-Worksheet 4 Name: ____________________________________________________ Period: ______________________ SHOW ALL WORK FOR FULL CREDIT! Remember to include units in your answers. Round answers to the proper number of significant figures. Substance Water Aluminum Iron Steam Mercury Chloroform Grain Alcohol Silver Ice Specific Heat (J/g x °C) 4.18 0.90 0.46 1.7 0.14 0.96 2.4 0.24 2.1 1. How much heat will be absorbed by 25g of chloroform when its temperature started at 67.0°C and after it was 112.0°C? Calculator answer:_______________ SF answer:_______________ 2. How much heat will be absorbed by 130g of Mercury when its temperature started at 24.0°C and after it was 78.0°C? Calculator answer:_______________ SF answer:_______________ 3. If the temperature of a 95.00 g sample of Iron started at 36.0°C and ended at 58.0°C, how much heat would be lost? Calculator answer:_______________ SF answer:_______________ 4. What is the definition of Temperature? ______________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 5. What is the definition of Heat? ______________________________________________________ ____________________________________________________________________________________ 6. Why can there never be a temperature less than 0 Kelvins? __________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ Heat Capacity Practice Problems-Worksheet 5 Name: ____________________________________________________ Period: ______________________ SHOW ALL WORK FOR FULL CREDIT!! Use the chart on the other side to answer the following questions. 1. How much heat is absorbed from a 56.00 g sample of Mercury when its temperature change is 289K? Calculator answer:_______________ SF answer:_______________ 2. If an 83.00 g sample of Iron has a starting temperature of 297K and an ending temperature of 329K, how much heat will be lost from the iron sample? Calculator answer:_______________ SF answer:_______________ 3. If the heat absorbed, from a 59.00 g sample, is 4814.4J and the temperature changed 85.0°C, what is the sample’s specific heat? What was the sample? Calculator answer:_______________ SF answer:_______________ Sample: __________________________ 4. The heat absorbed by a sample of 55.00 g is 3908.3J and its starting temperature is 78.0°C and its ending temperature was 95.0°C. What is the specific heat of this sample and what is the sample? Calculator answer:_______________ SF answer:_______________ Sample____________________