Question

IE₁ and IE₂ of Mg are 179 and 348 k cal mol^-1 respectively. The energy required for the reaction Mg → Mg²⁺ + 2e^- is ……

(a) +169 kcal mol^-1 

(b) -169 kcal mol^-1 

(c) +527 kcal mol^-1 

(d) -527 kcal mol^-1

Answer 1

(c) +527 kcal mol^-1