單項(xiàng)選擇題已知:NH3(g)NO(g)H2O(l)△G(KJ·mol-1)-16.6486.69-237.2則反應(yīng)4NH3(g)+5O2(g)4NO(g)+6H2O(l)的△G298為()kJ·mol-1
A.-133.9
B.-1009.9
C.-1286.6
D.159.5
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1.單項(xiàng)選擇題
已知:4Fe(s)+3O22Fe2O3(s);△G=-1480kJ·mol-1
4Fe2O3(s)+Fe(s)3Fe3O(s);△G=-80kJ·mol-1
則△G(Fe3O,s)的值是()kJ·mol-1
A.-1013
B.-3040
C.3040
D.1013
2.單項(xiàng)選擇題
已知:C(s)+O2(g)CO2(g)△H=-393.5kJ·mol-1
Mg(s)+O2(g)MgO(s)△H=-601.8kJ·mol-1
Mg(s)+C(s)+O2(g)MgCO3(s)△H=-1113kJ·mol-1
則MgO(s)+CO2(g)MgCO3(s)的△H為()kJ·mol-1
A.-235.4
B.-58.85
C.-117.7
D.-1321.3