题目内容

He and his family decided to move to France for the better ____________________.

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They were fed up with the commuting and _____________.

H2(g) +1/2O2(g)=H2O(l) 的Qp与QV之差(kJ·mol-1)是

A. -3.7
B. 3.7
C. 1.2
D. -1.2

对某体系作功165 J，该体系应_热量J才能使内能增加100J。

在某系统的状态变化中，U终态 - U始态 = -56 J，系统从环境吸收了54 J的热量，求系统所做的功W。