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 则MgO(s)+CO2(g)MgCO3(s)的△H为()kJ·mol-1
- A、-235.4
- B、-58.85
- C、-117.7
- D、-1321.3
正确答案:C
答案解析:有
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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 则MgO(s)+CO2(g)MgCO3(s)的△H为()kJ·mol-1
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