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.+92.3kJ·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.+92.3kJ·mol-1 |