A.12:3.25 | B.3.25:12 | C.1:1 | D.6:1 |
A.2SO2+O22SO3 ΔH=-196.6 kJ·mol-1 |
B.C(s)+O2(g)===CO2(g) ΔH=+393.5 kJ·mol-1 |
C.H2(g)+Cl2(g)===HCl(g) ΔH=-92.5 kJ·mol-1 |
D.H+(aq)+OH-(aq)===H2O(l) ΔH=+57.3 kJ |
A.+882kJ·mol-1 | B.+441kJ·mol-1 |
C.-882kJ·mol-1 | D.-441kJ·mol-1 |
A.△H1=△H2=△H3 | B.△H1 > △H2,△H1=2△H3 |
C.△H1 < △H2,△H2=2△H3 | D.无法比较 |
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