有三个热化学方程式：① 2H2 (g) + O2 (g) = 2H2O (g) ，放出 Q1 kJ的热量；
② 2 H2 (g) + O2 (g) =" 2" H2O (l) ，放出Q2 kJ的热量；
③ H2 (g) + 1/2 O2 (g) = H2O (g) ，放出 Q3 kJ的热量；
则Q1、Q2、Q3的大小关系为
| A．Q1 = Q2 = Q3 | B．2Q3 = Q1 < Q2、 |
| C．Q3 < Q2 < Q1 | D．Q1 < Q2 < 3Q3 |
相关试题
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| A．can | B．must | C．will | D．may |
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—— ______ , as a matter of fact
| A．Go ahead | B．Yes, my pleasure |
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C．long too much | D．too long much |
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| A．which | B．that | C．where | D．it |
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