已知:2H2(g)+O2(g)=2H2O(l)ΔH=-571.6kJ·mol-1
2CH3OH(l)+3O2(g)=2CO2(g)+4H2O(l)ΔH=-1452kJ·mol-1
H+(aq)+OH-(aq)=H2O(l)ΔH=-57.3kJ·mol-1
下列说法正确的是
A.H2(g)的燃烧热ΔH=-571.6 kJ·mol-1 |
B.H2SO4(aq)+Ba(OH)2(aq)= BaSO4(s)+2H2O(l) ΔH=-57.3 kJ·mol-1 |
C.同质量的H2(g)和CH3OH(l)完全燃烧生成液态水,H2(g)放出的热量多 |
D.3H2(g)+CO2(g)= CH3OH(l)+H2O(l) ΔH=+131.4 kJ·mol-1 |