1) Suppose you take a shower on a hot day. Describe the sign of the heat that le

Question

1) Suppose you take a shower on a hot day. Describe the sign of the heat that leaves your body as you step out of a warm shower. Next describe the temperature difference inside and out of the shower. Describe how this example relates the concepts of heat and work.

2) If Q = +163 cal and W = - 13 kJ, write a sentence describing how about how these relate to the calculation of the First Law. Use the words: release, gain, system, surroundings, unit conversion in your answer.

3)Suppose you take a shower on a cold day. Describe the sign of the heat that leaves your body as you step out of a warm shower. Next describe the temperature difference inside and out of the shower. Describe how this example relates the concepts of heat and work.

Explanation / Answer

1) Heat flows from higher temperature to lower temperature. So after shower, if the body temperature is greater than the atmospheric temperature then the heat flows freom body to atmosphere.

If the body temperature is less than the atmospheric temperatute, then the heat flows from atmosphere to body.

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