有關HClg12H2的精選大全

已知H2(g)+Cl2(g)=2HCl(g) △H=-184.6kJ/mol,則反應HCl(g)=1/2H2(...
問題詳情:已知H2(g)+Cl2(g)=2HCl(g) △H=-184.6kJ/mol,則反應HCl(g)=1/2H2(g)+1/2Cl2(g)的△H為A.+184.6kJ/mol                              B.-92.3kJ/molC.-369.2kJ/mol     ...
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