根据热化学方程式，正确的是
（1）CH4(g)＋2O2(g)＝CO2(g)＋2H2O(g)； △H1＝－Q1 kJ·mol－1
（2）CH4(g)＋2O2(g)＝CO2(g)＋2H2O(l)； △H2＝－Q2 kJ·mol－1
| A．Q1＞Q2 | B．△H1＞△H2 | C．Q1=Q2 | D．△H1＜△H2 |
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