手上擦酒精為何會感到涼涼的?? - 酒精
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By Una
at 2005-11-26T00:00
at 2005-11-26T00:00
Table of Contents
酒精可以拿來消毒, 也可以拿來製作醋, 還有保存標本, 可畏用途多多.請問為何酒精擦在手上會讓人感到涼涼的??
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酒精
All Comments
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By Gary
at 2005-11-30T09:27
at 2005-11-30T09:27
相對的的手就是放熱反應,
所以會感到涼涼的,
其實水也會,
但是因為酒精揮發的比較快,
所以會比水有感覺
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By Agatha
at 2005-11-30T03:07
at 2005-11-30T03:07
揮發同時會帶走體熱,速度很快
所以會覺得涼涼的
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By Brianna
at 2005-11-30T14:37
at 2005-11-30T14:37
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