下列依据热化学方程式得出的结论正确的是( )
A.已知2H2(g)+O2(g)=2H2O(l) ΔH=-483.6 kJ·mol-1,则氢气的燃烧热为483.6 kJ·mol-1 |
B.已知C(石墨,s)=C(金刚石,s) ΔH>0,则金刚石比石墨稳定 |
C.已知2C(s)+2O2(g)=2CO2(g) ΔH1 2C(s)+O2(g)=2CO(g) ΔH2 则ΔH1>ΔH2 |
D.已知Ni(CO)4(s)=Ni(s)+4CO(g) ΔH=+Q kJ·mol-1,则Ni(s)+4CO(g)=Ni(CO)4(s) ΔH=-Q kJ·mol-1 |