已知:2CO(g)+O2(g)===2CO2(g) ΔH=-566 kJ/mol
题型:选择题
问题:
已知:2CO(g)+O2(g)===2CO2(g) ΔH=-566 kJ/mol,N2(g)+O2(g)===2NO(g) ΔH=+180 kJ/mol,则2CO(g)+2NO(g)===N2(g)+2CO2(g)的ΔH是( )
A.-386 kJ/mol
B.+386 kJ/mol
C.-746 kJ/mol
D.+746 kJ/mol
已知:2CO(g)+O2(g)===2CO2(g) ΔH=-566 kJ/mol,N2(g)+O2(g)===2NO(g) ΔH=+180 kJ/mol,则2CO(g)+2NO(g)===N2(g)+2CO2(g)的ΔH是( )
A.-386 kJ/mol
B.+386 kJ/mol
C.-746 kJ/mol
D.+746 kJ/mol