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JEE Main 2015 Chemistry question

ChemistryChemical KineticsJEE Main 2015

For the equilibrium, , H is kJ/mol. If the ratio of the activation energies of the forward and reverse reactions is then:

Answer: (3)

Solution

On an energy profile the enthalpy change is the difference between the two activation barriers: . Writing the ratio as and , the condition gives , so and therefore kJ mol

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Question ID VK-115361