已知 H2(g)+Cl2(g)=2HCl(g)△H=-890KJ/mol 则反应HCl(g)=1/2H2(g)+1/2Cl2(g)的△H为( )A.+184.6KJ/mol B.-92.3KJ/mol C.-369.2KJ/mol D.+92.3KJ/mol

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已知 H2(g)+Cl2(g)=2HCl(g)△H=-890KJ/mol 则反应HCl(g)=1/2H2(g)+1/2Cl2(g)的△H为( )A.+184.6KJ/mol B.-92.3KJ/mol C.-369.2KJ/mol D.+92.3KJ/mol
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已知 H2(g)+Cl2(g)=2HCl(g)△H=-890KJ/mol 则反应HCl(g)=1/2H2(g)+1/2Cl2(g)的△H为( )A.+184.6KJ/mol B.-92.3KJ/mol C.-369.2KJ/mol D.+92.3KJ/mol
已知 H2(g)+Cl2(g)=2HCl(g)
△H=-890KJ/mol
则反应HCl(g)=1/2H2(g)+1/2Cl2(g)的△H为( )
A.+184.6KJ/mol B.-92.3KJ/mol
C.-369.2KJ/mol D.+92.3KJ/mol

已知 H2(g)+Cl2(g)=2HCl(g)△H=-890KJ/mol 则反应HCl(g)=1/2H2(g)+1/2Cl2(g)的△H为( )A.+184.6KJ/mol B.-92.3KJ/mol C.-369.2KJ/mol D.+92.3KJ/mol
这个题有错误吧,答案应该是+445啊