已知H2(g)+Cl2(g)=2HCl(g) △H=―184.6kJ·mol-1,则反应HCl(g)=H2(g)+Cl2(g)的△H为
A.+184.6kJ·mol-1 | B.―92.3kJ·mol-1 |
C.―369.2kJ·mol-1 | D.+92.3kJ·mol-1 |
已知H2(g)+Cl2(g)=2HCl(g) △H=―184.6kJ·mol-1,则反应HCl(g)=H2(g)+Cl2(g)的△H为
A.+184.6kJ·mol-1 | B.―92.3kJ·mol-1 |
C.―369.2kJ·mol-1 | D.+92.3kJ·mol-1 |