已知H2(g)+Cl2(g)="2HCl(g)" △H= -184.6kJ·mol-1,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,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 |