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)＋===CO(g)△H2

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

C．2H2(g)＋O2(g)===2H2O(l)△H1H2(g)＋===H2O(l)△H2

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