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【单选题】
一定量的物质在绝热刚性容器中,发生一个放热的分子数增加的化学反应,则下列物理量正确的一组是( )。[北京科技大学2012研]
A.
Q﹥0,W﹥0, U﹥0
B.
Q = 0,W = 0, U﹥0
C.
Q = 0,W = 0, U = 0
D.
Q﹤0,W﹥0, U﹤0
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