本题目来源于试卷: gc textbook chater 14 heat，类别为 IB物理学
[问答题]
A 22 $^{\circ} C$ day is warm, while a swimming pool at $22\; ^{\circ}C$ feels cool. Why?
参考答案:
Air is a poorer conductor of heat than water by
roughly a factor of 20, and so the rate of heat loss from your body to the air
is roughly 20 times less than the rate of heat loss from your body to the
water. Thus you lose heat quickly in the
water, and feel cold. Another
contributing factor is that water has a high heat capacity, and so as heat
leaves your body and enters the water, the temperature rise for the water close
to your body is small. Air has a smaller
heat capacity, and so the temperature rise for the air close to your body is
larger. This reduces the temperature difference between your body and the air,
which reduces the rate of heat loss to the air as well.
本题详细解析:
暂无
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