下列各组热化学方程式中，△H₁>△H₂的是(  　)

A．C(s)＋O2(g)===CO2(g)△H1 C(s)＋1/2O2(g)===CO(g)△H2

B．H2(g)＋1/2O2(g)===H2O(l)△H1 2H2(g)＋O2(g)===2H2O(l)△H2

C．S(g)＋O2(g)===SO2(g)△H1S(s)＋O2(g)===SO2(g)△H2

D．CaCO3(s)===CaO(s)＋CO2(g)△H1 CaO(s)＋H2O(l)===Ca(OH)2(s)△H2