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
A.N2(g)+3H2(g)⇌2NH3(l)△H=2(a﹣b﹣c)kJ/mol |
B.N2(g)+3H2(g)⇌2NH3(g)△H=2(b﹣a)kJ/mol |
C.0.5N2(g)+1.5H2(g)⇌NH3(l)△H=(b+c﹣a)kJ/mol |
D.0.5N2(g)+1.5H2(g)⇌NH3(g)△H=(a+b)kJ/mol |
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
A.N2(g)+3H2(g)⇌2NH3(l)△H=2(a﹣b﹣c)kJ/mol |
B.N2(g)+3H2(g)⇌2NH3(g)△H=2(b﹣a)kJ/mol |
C.0.5N2(g)+1.5H2(g)⇌NH3(l)△H=(b+c﹣a)kJ/mol |
D.0.5N2(g)+1.5H2(g)⇌NH3(g)△H=(a+b)kJ/mol |