AB,A_(2) and B_(2) are diatomic molecules. If the bond enthlpies of A_(2),AB and B_(2) are in the ratio 1 : 1 : 0.5 and enthalopy of formation of AB from A_(2) to B_(2) is -100kJ//mol^(-1). What is the bound enthalpy of A_(2)?

AB,A_(2) and B_(2) are diatomic molecules. If the bond enthlpies of A_

1.	AB,A_(2) and B_(2) are diatomic molecules. If the bond enthlpies of A_(2),AB and B_(2) are in the ratio 1 : 1 : 0.5 and enthalopy of formation of AB from A_(2) to B_(2) is -100kJ//mol^(-1). What is the bound enthalpy of A_(2)?
Answer» 400 KJ`//`mol 200kJ`//`mol 100 kJ`//`mol 300 kJ`//`mol Answer :A