已知热化学方程式:
①CO(g)+1/2O₂(g)=CO₂(g)  △H= -283.0kJ/mol
②H₂(g)+1/2O₂(g)=H₂O(g) △H= -241.8kJ/mol
据此判断下列说法正确的是

A．H2(g)+1/2O2(g)=H2O(l) △H>-241.8kJ/mol

B．H2(g)的燃烧热△H ="-241.8" kJ/mol

C．H2(g)转变成H2O(g)的化学反应一定放出能量

D．CO(g)+ H2O(g)= CO2(g)+ H2(g)的△H =-41.2kJ/mol