1) All the energy released from the reaction X→Y,△rG0=−193kJmol−1 is used for oxidising M+ as M+→M3++2¯e, E0 =-0.25 V. Under standard conditions , the number of moles of M+ oxidised when one mole of X is converted to Y is [F=96500 C mol-] A) 4 B) 3 C) 2 D) 1 Answer: Option AExplanation:Energy obtained as one mole X is converted into Y is 193 KJ Energy consumed in converting one mole of M+ to M3+ =−nE0F=2×96500×0.25J=965002J ⇒193×103=n(965002) ⇒ n=4 mol