已知H2(g)+Cl2(g)=2HCl(g) △H = ―184.6kJ·mol-1，则HCl(g)=1/2H2(g)+1/2Cl2(g)的焓变△H为 ( )
| A．+184.6kJ·mol-1 | B．―92.3kJ·mol-1 |
| C．+92.3kJ | D．+92.3kJ·mol-1 |
相关试题
已知H2(g)+Cl2(g)=2HCl(g) △H = ―184.6kJ·mol-1，则HCl(g)=1/2H2(g)+1/2Cl2(g)的焓变△H为 ( )
| A．+184.6kJ·mol-1 | B．―92.3kJ·mol-1 |
| C．+92.3kJ | D．+92.3kJ·mol-1 |
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