NEET Exam Model Paper 2

The energies of activation for forward and reverse reactions for A2+B2→2AB are 280kjmol−1 and 400KJmol−1 respectively. The presence of catalyst lowers the activation energyof both forward as well as reverse reactions by 100KJmol−1. The enthalpy change of the reaction A2+B2→2AB in the presence of catalyst will be (in KJmol−1)