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