12.化學(xué)反應(yīng)N2+3H2 = 2NH3的能量變化如題圖所示.該反應(yīng)的熱化學(xué)方程式是 查看更多

 

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化學(xué)反應(yīng)N2+3H2 = 2NH3的能量變化如題圖所示,該反應(yīng)的熱化學(xué)方程式是(     )

A.N2(g)+3H2(g) = 2NH3(g) ;⊿H = 2(b—a)kJ·mol1

B.N2(g)+3H2(g) = 2NH3(l);⊿H = 2(a—b—c)kJ·mol1

C.N2(g)+H2(g) = NH3(l) ;⊿H = (b+c—a)kJ·mol1

D.N2(g)+H2(g) =NH3(g) ;⊿H = (a+b)kJ·mol1

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化學(xué)反應(yīng)N2+3H2 = 2NH3的能量變化如題圖所示,該反應(yīng)的熱化學(xué)方程式是(     )

A.N2(g)+3H2(g) = 2NH3(g) ;⊿H = 2(b—a)kJ·mol1

B.N2(g)+3H2(g) = 2NH3(l);⊿H = 2(a—b—c)kJ·mol1

C.N2(g)+H2(g) = NH3(l) ;⊿H = (b+c—a)kJ·mol1

D.N2(g)+H2(g) =NH3(g) ;⊿H = (a+b)kJ·mol1

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(2分)化學(xué)反應(yīng)N2+3H2 = 2NH3的能量變化如圖所示,該反應(yīng)的熱化學(xué)方程式是:N2(g)+3H2(g) = 2NH3(l);⊿H =                              

 

 

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(2分)化學(xué)反應(yīng)N2+3H2= 2NH3的能量變化如圖所示,該反應(yīng)的熱化學(xué)方程式是:N2(g)+3H2(g) = 2NH3(l);⊿H =                              

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化學(xué)反應(yīng)N2+3H2=2NH3的能量變化如圖所示,該反應(yīng)的熱化學(xué)方程式是

A.N2(g)+3H2(g)=2NH3(l);ΔH=2(abc) kJ·mol1

B.N2(g)+3H2(g)=2NH3(g);ΔH=2(ba) kJ·mol1

C.N2(g)+H2(g)=NH3(l);ΔH=(bca) kJ·mol1

D.N2(g)+H2((g)=NH3(g);ΔH=(ab) kJ·mol1

 

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