Extended Response
11.1 Temperature and Thermal Energy
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It is the temperature at which the internal energy of the system is maximum, because the speed of its constituent particles increases to maximum at this point.
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It is the temperature at which the internal energy of the system is maximum, because the speed of its constituent particles decreases to zero at this point.
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It is the temperature at which the internal energy of the system approaches zero, because the speed of its constituent particles increases to a maximum at this point.
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It is that temperature at which the internal energy of the system approaches zero, because the speed of its constituent particles decreases to zero at this point.
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On hot, dry days, the evaporation of the sweat from the skin cools the body, whereas on humid days the concentration of water in the atmosphere is lower, which reduces the evaporation rate from the skin’s surface.
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On hot, dry days, the evaporation of the sweat from the skin cools the body, whereas on humid days the concentration of water in the atmosphere is higher, which reduces the evaporation rate from the skin’s surface.
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On hot, dry days, the evaporation of the sweat from the skin cools the body, whereas on humid days the concentration of water in the atmosphere is lower, which increases the evaporation rate from the skin’s surface.
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On hot, dry days, the evaporation of the sweat from the skin cools the body, whereas on humid days the concentration of water in the atmosphere is higher, which increases the evaporation rate from the skin’s surface.
11.2 Heat, Specific Heat, and Heat Transfer
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Water would reduce the metal’s temperature more, because water has a greater specific heat than ice.
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Water would reduce the metal’s temperature more, because water has a smaller specific heat than ice.
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Ice would reduce the metal’s temperature more, because ice has a smaller specific heat than water.
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Ice would reduce the metal’s temperature more, because ice has a greater specific heat than water.
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The black object radiates energy faster than the white one, and hence reaches a lower temperature in less time.
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The black object radiates energy slower than the white one, and hence reaches a lower temperature in less time.
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The black object absorbs energy faster than the white one, and hence reaches a lower temperature in less time.
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The black object absorbs energy slower than the white one, and hence reaches a lower temperature in less time.
Calculate the difference in heat required to raise the temperatures of 1.00 kg of gold and 1.00 kg of aluminum by 1.00 °C. (The specific heat of aluminum equals 900 J/kg · °C; the specific heat of gold equals 129 J/kg · °C.)
- 771 J
- 129 J
- 90 J
- 900 J
11.3 Phase Change and Latent Heat
True or false—You have an ice cube floating in a glass of water with a thin thread resting across the cube. If you cover the ice cube and thread with a layer of salt, they will stick together, so that you are able to lift the ice-cube when you pick up the thread.
- True
- False
Suppose the energy required to freeze 0.250 kg of water were added to the same mass of water at an initial temperature of 1.0 °C. What would be the final temperature of the water?
- -69.8 °C
- 79.8 °C
- -78.8 °C
- 80.8 °C