已知:H2(g)+ Cl2(g)= 2HCl(g);△H = -184.6kJ·mol-1,则反应:HCl(g)= 1/2 H2(g)+ 1/2 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)= 1/2 H2(g)+ 1/2 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 |