化学反应N2+3H22NH3的能量变化如下图所示,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-1 |
化学反应N2+3H22NH3的能量变化如下图所示,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-1 |