②N2(g)+3H2(g) 2NH3(g). ΔH < 0, 查看更多

 

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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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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)+H2((g)=NH3(g);ΔH=(ab) 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)+3H2(g)=2NH3(l);ΔH=2(abc) 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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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);⊿H = 2 (abc) kJ·mol1

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

C.N2(g)+H2(g) = NH3(l) ;⊿H =(bca) kJ·mol1

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

 

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