题目

在同温同压下,下列各组热化学方程式中，△H2>△H1的是（     ） A．2H2(g)+O2(g)＝2H2O(g) △H1；2H2(g)+O2(g)＝2H2O(l)△H2 B．S(g)+O2(g)＝SO2 (g)△H1；S(s)+O2(g)＝SO2(g)△H2 C．C(s)+O2(g)＝CO (g)△H1；C(s)+O2(g)＝CO2(g)△H2 D．H2(g)+Cl2(g)＝2HCl(g)△H1；2H2(g)+2Cl2(g)＝4HCl(g) △H2 答案：BIt's a ________ if you want me to tell the ________ .A.truth, truthB.fact, factC.fact, truthD.truth, fact