已知1/2H2(g)+1/2C12(g)HCl(g);△H=-92.3kJ·mol-1,则反应2HCl(g)
H2(g)+Cl2(g)的△H1为
A.+92.3 kJ·mol-1 | B.-92.3 kJ·mol-1 |
C.-184.6 kJ·mol-1 | D.+184.6 kJ·mol-1 |
已知1/2H2(g)+1/2C12(g)HCl(g);△H=-92.3kJ·mol-1,则反应2HCl(g)
H2(g)+Cl2(g)的△H1为
A.+92.3 kJ·mol-1 | B.-92.3 kJ·mol-1 |
C.-184.6 kJ·mol-1 | D.+184.6 kJ·mol-1 |