2CO(g)+O2(g)=2CO2(g) △H1=-560kJ/mol
CH4(g)+2O2(g)=CO2(g)+2H2O(1) △H=-880kJ/mol
33.6L(标况)CO和CH4组成的混合气体,在相同条件下完全燃烧时,释放的热量为960kJ,求混合气体中CO和CH4的体积比为( )