可以利用热力学数据计算4FeS2(s) + 11O2(g) = 2Fe2O3(s) + 8SO2(g)△fHm,FeS2(g) = -177.9 kJ/mol△fHm,O2(g) = 0△fHm,Fe2O3(s) = -822.2 kJ/mol△fHm,SO2(g) = -296.9 kJ/mol反应的焓变△rHm = 8△fHm,SO2(g) + 2...