Calculate the lattice energy of a salt MX(s) from the data given below:
Heat of formation of MX(ΔH)=−550 kJ/mol
Heat of sublimation of M(S)=80 kJ/mol
Heat of dissociation of X2(D)=155 kJ/mol
Ionization energy of M(I)=347 kJ/mol
Electron affinity of X(E)=−343 kJ/mol