摘要:5.化学反应N2+3H2 = 2NH3的能量变化如题图所示.该反应的热化学方程式是w.w.w.k.s.5 u.c.o.m( )
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化学反应N2+3H2 = 2NH3的能量变化如题图所示,该反应的热化学方程式是( )
A.N2(g)+3H2(g) = 2NH3(g) ;⊿H = 2(b—a)kJ·mol-1
B.N2(g)+3H2(g) = 2NH3(l);⊿H = 2(a—b—c)kJ·mol-1
C.N2(g)+H2(g) = NH3(l) ;⊿H = (b+c—a)kJ·mol-1
D.N2(g)+H2(g) =NH3(g) ;⊿H = (a+b)kJ·mol-1
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