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-1940kJ·mol-1 1940kJ·mol-1 -485kJ·mol-1 485kJ·mol-1
放热91.5kJ 放热183kJ 吸热183kJ 吸热91.5kJ
-183 kJ·mol-1 183 kJ·mol-1 -862 kJ·mol-1 862 kJ·mol-1
431 KJ/mol 946 KJ/mol 649 KJ/mol 869 KJ/mol
431kJ 179kJ
89.5kJ 以上说法都不对
H2(g)+Cl2(g)=2HCl(g); △H=-183 kJ·mol-1 H2(g)+Cl2(g)=2HCl(g); △H=+183kJ·mol-1 H2(g)+Cl2(g)=2HCl(g);△H=-91.5kJ·mol-1 H2(g)+Cl2(g)=2HCl(g);△H=+91.5kJ·mol-1
放热 183kJ・mol-1 放热 91.5kJ・mol-1
吸热 183kJ・mol-1 吸热 91.5kJ・mol-1
放热183KJ 放热91.5KJ 吸热183KJ 吸热91.5KJ
石墨和金刚石的转化是物理变化 C.(s、石墨)== (s、金刚石) △H= +1.9 kJ•mol-1 C.金刚石的稳定性强于石墨 1 mol石墨的总键能比1 mol金刚石的总键能小1.9 kJ
431 kJ·mol-1 945.6 kJ·mol-1 649 kJ·mol-1 869 kJ·mol-1
放热91.5KJ 放热183KJ 吸热183KJ 吸热91.5KJ
431kJ·mol-1 945.6kJ·mol-1 649kJ·mol-1 896kJ·mol-1
﹣183 kJ/mol 183 kJ/mol ﹣862 kJ/mol 862 kJ/mol
496 kJ·mol-1 431 kJ·mol-1 862 kJ·mol-1 248 kJ·mol-1
431 kJ/mol 946 kJ/mol 649 kJ/mol 869 kJ/mol
431 kJ/mol 946 kJ/mol 649 kJ/mol 869 kJ/mol
+184.6kJ·mol-1 —369.2 kJ·mol-1 +92.3 kJ·mol-1 —92.3 kJ·mol-1