同温同压下，下列各组热化学方程式中，△H₁＜△H₂是

A．S(g)＋O2(g)＝SO2(g)；△H1 S(s)＋O2(g)＝SO2(g)；△H2

B．1/2H2(g)＋1/2Cl2(g)＝HCl(g)；△H1H2(g)＋Cl2(g)＝2HCl(g)；△H2

C．2H2(g)＋O2(g)＝2H2O(g)；△H12H2(g)＋O2(g)＝2H2O(l)；△H2

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