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Chapter 21 polish up 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 forecast and exempt 6. Because act has high uper precise come alive capacity. 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 adjudicate 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 Questions 1. They conduct heat well. 2. Because it is a profound conductor of heat. 3. A conductor transfer heat easily but an dielectric delay the transfer of heat. 4. Because there be lots of var. spaces in those materials. 7. Because the land is warmer than the water in the daytime and cooler than the water at night. 8.

As the gas expands, it cools and its temperature rises when it is compressed. 10. both energy, including heat, that is transmitted by radiation is called beamy energy. 11. Objects at depressed temperatures emit long waves, and higher-temperature objects emit waves of shorter wavelengths. 12. Because a good absorber of refulgent energy! reflects very little beamy energy, including the range of radiant energy we call light. 14. Good emitter. 15. A black imbed 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 transport has a lower density than cold song, do it rise. The holes part with 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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