已知:C(s)+O2(g)=CO2(g)△H??=-393.5kJ?mol-12Mg(s)+O2(g)=2MgO(s)△H??=-601.8kJmol-12Mg(s)+2C(s)+3O2(g)=2MgCO3(s)△H??=-1113kJ?mol-1则MgO(s)+CO2(g)=MgCO3(s)的△Hr为()kJ?mol-1。
已知:C(s)+O2(g)=CO2(g)△H??=-393.5kJ?mol-12Mg(s)+O2(g)=2MgO(s)△H??=-601.8kJmol-12Mg(s)+2C(s)+3O2(g)=2MgCO3(s)△H??=-1113kJ?mol-1则MgO(s)+CO2(g)=MgCO3(s)的△Hr为()kJ?mol-1。
A.-235.4
B.-58.85
C.-117.7
D.-1321.3
正确答案:BC.第七
Tag:消防工程大学化学
时间:2024-01-20 14:15:15