23.化学反应N2+3H2 = 2NH3的能量变化如图所示.该反应的热化学方程式是: N2(g)+3H2(g) = 2NH3(l),⊿H = 查看更多

 

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化学反应N2+3H2=2NH3的能量变化如图所示,E是正值,该反应的热化学方程式是(   )

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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化学反应N2+3H2=2NH3的能量变化如图所示,E是正值,该反应的热化学方程式是(   )

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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化学反应N2+3H2=2NH3的能量变化如图所示,E是正值,该反应的热化学方程式是(   )
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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化学反应N2+3H2=2NH3的能量变化如图所示,E是正值,该反应的热化学方程式是(   )

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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化学反应N2+3H2=2NH3的能量变化如图所示,E是正值,该反应的热化学方程式是(   )

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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