摘要:2.已知H2(g) + C12(g) = 2HCl(g),△H=-184.6kJ·mol-1.则反应HCl(g)= 1/2H2(g) +1/2 Cl2(g)的△H为 ( ) A.+92.3 kJ·mol-1 B.-92.3 kJ·mol-1 C.-369.2 kJ·mol-1 D.+184.6 kJ·mol-1
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已知H2(g)+C12(g)
2HCl(g);△H=-184.6kJ·mol-1,
则反应2HCl(g)
H2(g)+Cl2(g)的△H为
A.+92.3 kJ·mol-1 B.-92.3 kJ·mol-1
C.-369.2 kJ·mol-1 D.+184.6 kJ·mol-1
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已知H2(g)+C12(g)
2HCl(g);△H=-184.6kJ·mol-1,
则反应2HCl(g)
H2(g)+Cl2(g)的△H为
| A.+92.3 kJ·mol-1 | B.-92.3 kJ·mol-1 |
| C.-369.2 kJ·mol-1 | D.+184.6 kJ·mol-1 |