已知：①CH4(g)+2O2(g)→CO2(g)+2H2O(g) ΔH＝- Q1 kJ／mol；
② 2H2(g)+O2(g) == 2H2O(g) ΔH＝- Q2 kJ／mol； ③ H2O(g) = H2O(l) ΔH＝- Q3 kJ／mol
常温下，取体积比为4：1的甲烷和H2的混合气体112L（标准状况下），经完全燃烧后恢复到常温，则放出的热量为（ ）
| A．4Q1+0．5Q2 | B．4Q1+Q2+10Q3 | C．4Q1+2Q2 | D．4Q1+0．5Q2+9Q3 |
相关试题
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
It is often ______ that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
I can’t leave. She told me that I ______ stay here until she comes back.
| A．can | B．must | C．will | D．may |
—— Do you mind my opening the window? It’s a bit hot in here.
—— ______ , as a matter of fact
| A．Go ahead | B．Yes, my pleasure |
C．Yes, I do | D．Come on |
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