下列各组热化学方程式中，化学反应的ΔH前者大于后者的是①C(s)＋O2(g)===CO2(g)ΔH1；C(s)＋O2(g)===CO(g)ΔH2②S(s)＋O2(g)===SO2(g) ΔH3；S(g)＋O2(g)===SO2(g) ΔH4③H2(g)＋O2(g)===H2O(l)ΔH5；2H2(g)＋O2(g)===2H2O(l)ΔH6④CaCO3(s)===CaO(s)＋CO2(g)ΔH7；CaO(s)＋H2O(l)===Ca(OH2)(s)ΔH8
试题篮
O2(g)===CO(g)ΔH2O2(g)===H2O(l)ΔH5；2H2(g)＋O2(g)===2H2O(l)ΔH6