Born- Hyber cycle below respesents the energy changes occurring as 298 K, jwhen MO(s) is formed from its elements, wherx x, y,z, a, b,c and d are enthalpy change elements, for corresponding pro0cesses respectively
`DeltaH_("sub")"of" M=180kJ//mol`
`I.E_(1)(M)=218kJ//mol`
`I.E_(2)(M)=384kJ//mol`
`DeltaH_("atomisation")"of" O_(2)=640kJ//mol`
`DeltaH(OrarrO^(-))=-142kJ//mol`
`DeltaH(OrarrO^(-2))=-844kJ//mol`
If `DeltaH_(f)"of MO(s) is " -196kJ//mol` then lattice energy of MO (s) will be :

Options

A. `-2000 KJ//mol`
B. `-1000 KJ//mol`
C. `-1500 KJ//mol`
D. `-600 KJ//mol`

Answer

a