在101kPa和25℃时,有关反应的热化学方程式如下:
C(s)+1/2O2(g)===CO(g)ΔH1=-110.5kJ·mol-1
H2(g)+1/2O2(g)===H2O(g)ΔH2=-241.7kJ·mol-1
H2(g)+1/2O2(g)===H2O(l)ΔH3=-285.8kJ·mol-1
下列说法正确的是
A.C(s)+H2O(g)===CO(g)+H2(g)ΔH=-131.2kJ·mol-1 |
B.H2燃烧热的热化学方程式为:2H2(g)+O2(g)===2H2O(l)ΔH=-571.6kJ·mol-1 |
C.2H2O(g)===2H2(g)+O2(g)ΔH=-483.4kJ·mol-1 |
D.H2O(g)===H2O(l)ΔH=-44.1kJ·mol-1 |