题目:
已知下列两个热化学方程式
2H2(g)+O2(g)=2H2O(l)+571.6KJ C3H8(g)+5O2(g)=3CO2(g)+4H2O(l)+2220.0KJ
实验测得H2、C3H8混合气体共5mol完全燃烧时放热3847KJ,则原混合气体中H2、C3H8的体积比是( )
A.1:3
B.3:1
C.1:4
D.1:1
答案:
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