An exothermic reaction A rarr B is spontaneous in the backward direction. What will be the sign of DeltaS for the forward reaction ?

An exothermic reaction A rarr B is spontaneous in the backward directi

1.	An exothermic reaction A rarr B is spontaneous in the backward direction. What will be the sign of DeltaS for the forward reaction ?
Answer» Solution :Backward REACTION will be endothermic . THUS, energy factor opposesthe backward reaction. As backward reaction is SPONTANEOUS , randomness factor MUST favour, i.e.,`DeltaS` will be`+ve` for the backward reaction oritwill be `-ve`for FORWARD reaction.