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Chapter 21 analyse Plug and Chug 1. Q = mc?T Q = (500g)(1cal/g°C)(50°C) = 25000 calories autonomic nervous system: 25000 calories 2. Q = mc?T Q = (500g)(1cal/g°C)(50°C-20°C) = 15000 calories autonomic nervous system: 15000 calories 3. Q = mc?T Q = (30g)(0.11cal/g°C)(100°C-30°C) = 231 calories Ans: 231 calories 6. c = Q/m?T c = 735cal/(50g)(100°C-30°C) = 0.21 Ans: 0.21cal/g°C mobilize and explicate 6. Because act has high uper particular(prenominal) groove subject matter. 7. A 10-kilogram jug of sweltry body of water because it has higher specific heat capacity. 14. A high specific heat capacity because it can store much energy. 15. More likely. Think and top 2. Tfinal= m1T1+m2T2/?T 1000g(20°C)+2000g(40°C)/3000g ? 33.3 Ans: About 33.3°C 4. Q = mc?T Q = (400g)(1cal/g°C)(22°C-20°C) = 800 calories c = Q/m?T c = 800cal/(50g)(100°C-22°C) = 0.2051282051 ? 0.21 Ans: About 0.21 cal/g°C Chapter 22 Review Review Que stions 1. They conduct heat well. 2. Because it is a profound conductor of heat. 3. A conductor transfer heat easily but an insulator delay the transfer of heat. 4. Because there be lots of behavior spaces in those materials. 7. Because the land is warmer than the water in the day and cooler than the water at night. 8.

As the gas expands, it cools and its temperature rises when it is compressed. 10. whatsoever energy, including heat, that is transmitted by radiation is called effulgent energy. 11. Objects at funky temperatures emit long waves, and higher-temperature objects emit waves of shorter wave lengths. 12. Because a good absorber of re! fulgent energy reflects very little radiant energy, including the range of radiant energy we call light. 14. Good emitter. 15. A black faeces of hot tea. 16. In a snappy room. Think and Explain 2. No. Cold doesnt flow but the heat escapes. 3. Because iron is a good conductor of heat. 4. wild glow has a lower density than cold line of work, do it rise. The holes surrender for hot air to rise from the bulb, while new-fangled cooler air is pulled in from the bottom of the lamp. 6....If you want to bring about a full essay, order it on our website: OrderCustomPaper.com

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