已知H2(g) + Cl2(g) = 2HCl(g) △H= ―184.6kJ·mol-1,则反应HCl(g) =1/2H2(g) + 1/2Cl2(g)的△H为
A.+184.6kJ·mol-1 | B.―92.3kJ·mol-1 | C.+92.3kJ | D.+92.3 kJ·mol-1 |
已知H2(g) + Cl2(g) = 2HCl(g) △H= ―184.6kJ·mol-1,则反应HCl(g) =1/2H2(g) + 1/2Cl2(g)的△H为
A.+184.6kJ·mol-1 | B.―92.3kJ·mol-1 | C.+92.3kJ | D.+92.3 kJ·mol-1 |