化學反應N2+3H2 = 2NH3的能量變化如圖所示.該反應的熱化學方程式是( ) A.N2(g)+3H2(g) = 2NH3(l), ⊿H = 2kJ/mol B.N2(g)+3H2(g) = 2NH3(g) , ⊿H = 2(b-a)kJ/mol C.1/2 N2(g)+ 3/2 H2(g) = NH3(l) , ⊿H = kJ/mol D.1/2 N2(g)+ 3/2H2(g) =NH3(g) , ⊿H = (a+b)kJ/mol 查看更多

 

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化學反應N2+3H2=2NH3的能量變化如圖所示,E是正值,該反應的熱化學方程式是(   )

A.N2(g)+3H2(g)=2NH3(1); △H=2(a-b-c)kJ·mol-1
B.N2(g)+3H2(g)=2NH3(g);△H=2(b-a)kJ·mol-1
C.N2(g)+H2(g)=NH3(1);△H=(b+c-a)kJ·mol-1
D.N2(g)+H2(g)=NH3(g); △H=(a+b)kJ·mol

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化學反應N2+3H2=2NH3的能量變化如圖所示,E是正值,該反應的熱化學方程式是(   )

A.N2(g)+3H2(g)=2NH3(1); △H=2(a-b-c)kJ·mol1

B.N2(g)+3H2(g)=2NH3(g);△H=2(b-a)kJ·mol1

C.N2(g)+H2(g)=NH3(1);△H=(b+c-a)kJ·mol1

D.N2(g)+H2(g)=NH3(g); △H=(a+b)kJ·mol

 

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化學反應N2+3H2=2NH3的能量變化如圖所示,E是正值,該反應的熱化學方程式是(   )
A.N2(g)+3H2(g)=2NH3(1); △H=2(a-b-c)kJ·mol-1
B.N2(g)+3H2(g)=2NH3(g);△H=2(b-a)kJ·mol-1
C.N2(g)+H2(g)=NH3(1);△H=(b+c-a)kJ·mol-1
D.N2(g)+H2(g)=NH3(g); △H=(a+b)kJ·mol

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化學反應N2+3H2=2NH3的能量變化如圖所示,E是正值,該反應的熱化學方程式是(   )

A.N2(g)+3H2(g)=2NH3(1); △H=2(a-b-c)kJ·mol-1

B. N2(g)+3H2(g)=2NH3(g);△H=2(b-a)kJ·mol-1

C.N2(g)+H2(g)=NH3(1);△H=(b+c-a)kJ·mol-1

D.N2(g)+ H2(g)=NH3(g); △H=(a+b)kJ·mol

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化學反應N2+3H2=2NH3的能量變化如圖所示,E是正值,該反應的熱化學方程式是(   )

A.N2(g)+3H2(g)=2NH3(1); △H=2(a-b-c)kJ·mol-1

B. N2(g)+3H2(g)=2NH3(g);△H=2(b-a)kJ·mol-1

C.N2(g)+H2(g)=NH3(1);△H=(b+c-a)kJ·mol-1

D.N2(g)+ H2(g)=NH3(g); △H=(a+b)kJ·mol

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