A.A(g)+B(g)=C(g)△H1<0 A(g)+B(g)=C(l)△H2<0 则△H1____△H2
B.S(g)+O2(g)=SO2(g)△H1<0 S (s)+O2(g)=SO2(g)△H2<0 则△H1____△H2
C.C(s)+O2(g)=CO2(g)△H1<0 C(s)+ 12 O2(g)=CO(g)△H2<0 则△H1____△H2.
下列结论中成立的( )
— Mary, how did your Math test go?
— I had thought I ________, but in fact I came in the top 10 in my class.