[" Q.12For a hypothetical reaction "A rarr B" ,the activation energies for forward and backward "],[" reactions are "19kJ/" mole and "9kJ/" mole respectively.The heat of reaction is "]

In a hypothetical reaction X rarr Y , the activation energy for the forward and backward reactions is 15 and 9 kJ mol^(-1) , respectively. The potential energy of X is 10 kJ mol^(-1) . Then Plot t_(1//2) vs. concentration

The reaction A to C has activation energy for the forward and the backward reaction has 25 kJ and 32 KJ respectively. The DeltaH for the reaction is