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8) An external heat source supplies heat to a system at a rate of 187 W as the system does work at a rate of 131 W. At what rate is the internal (thermal) energy of the system changing? Is this rate positive or negative? What does the sign mean in terms of temperature?

8) An external heat source supplies heat to a system at a rate of 187 W as the system does work at a rate of 131 W. At what rate is the internal (thermal) energy of the system changing? Is this rate positive or negative? What does the sign mean in terms of temperature?

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8) An external heat source supplies heat to a system at a rate of 187 W as the system does work at a rate of 131 W. At what rate is the internal (thermal) energy of the system changing? Is this rate positive or negative? What does the sign mean in terms of temperature?
Transcribed Image Text:8) An external heat source supplies heat to a system at a rate of 187 W as the system does work at a rate of 131 W. At what rate is the internal (thermal) energy of the system changing? Is this rate positive or negative? What does the sign mean in terms of temperature?
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