已知H2(g)+Cl2 △H=―184.6kJ·mol-1. 則反應(yīng):HCl(g)=1/2H2(g)+1/2Cl2(g)的△H為( ) A.+184.6kJ·mol-1 B.―92.3kJ·mol-1 C.―369.2kJ·mol-1 D.+92.3kJ·mol-1 查看更多

 

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已知H2(g)+Cl2(g)=2HCl(g) △H= ―184.6kJ·mol-1,則HCl(g)=1/2H2(g)+1/2Cl2(g)的焓變H為(    )

A.+184.6kJ·mol-1                B.―92.3kJ·mol-1  

C.+92.3kJ                        D.+92.3kJ·mol-1

 

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已知H2(g)+Cl2(g)=2HCl(g) △H= -184.6kJ·mol-1, 則反應(yīng)HCl(g)=1/2H2(g)+1/2Cl2(g)的△H為

A.+184.6kJ·mol-1B.―92.3kJ·mol-1
C.+92.3kJD.+92.3kJ·mol-1

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已知H2(g)+Cl2(g)=2HCl(g) △H= -184.6kJ·mol-1, 則反應(yīng)HCl(g)=1/2H2(g)+1/2Cl2(g)的△H為

A.+184.6kJ·mol-1                        B.―92.3kJ·mol-1

C.+92.3kJ                               D.+92.3kJ·mol-1

 

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已知H2(g)+Cl2(g)=2HCl(g)  △H=―184.6kJ·mol-1, 則反應(yīng)HCl(g)=1/2H2(g)+1/2Cl2(g)的焓變?yōu)椋?nbsp;  )

A.+184.6kJ·mol-1    B.―92.3kJ·mol-1    C.―369.2kJ·mol-1    D.+92.3kJ·mol-1

 

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已知H2(g)+Cl2(g)=2HCl(g)  △H = ―184.6kJ·mol-1,則HCl(g)=1/2H2(g)+1/2Cl2(g)的焓變H為 (    )

A.+184.6kJ·mol-1                 B.―92.3kJ·mol-1  

C.+92.3kJ                        D. +92.3kJ·mol-1

 

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