从ΔfHm,SO2(g)=-296.8KJ/mol和ΔfHm,SO3(g)=-395.7 KJ/mol数据
可算出:2 SO2(g)+O2(g)=2 SO3(g)反应的ΔrHm=-197.8KJ/mol,
逆反应:2 SO3(g)=2 SO2(g)+O2(g)的活化能为:Ea1=251.0+197.8=448.8KJ/mol
pt催化下的活化能为:Ea2=62.8+197.8=260.6KJ/mol
从ΔfHm,SO2(g)=-296.8KJ/mol和ΔfHm,SO3(g)=-395.7 KJ/mol数据
可算出:2 SO2(g)+O2(g)=2 SO3(g)反应的ΔrHm=-197.8KJ/mol,
逆反应:2 SO3(g)=2 SO2(g)+O2(g)的活化能为:Ea1=251.0+197.8=448.8KJ/mol
pt催化下的活化能为:Ea2=62.8+197.8=260.6KJ/mol