Test SeriesFree PYQsExamsPricing

JEE Main 2020 Chemistry question

ChemistryChemical KineticsJEE Main 2020

For following reactions it was found that the is decreased by 30 kJ/mol in the presence of catalyst. If the rate remains unchanged, the activation energy for catalysed reaction is (Assume pre exponential factor is same):

Answer: (C)

Solution

Equal rate constants with the same pre-exponential factor give Ea/T constant: (Ea − 30)/500 = Ea/700, so Ea (uncatalysed) = 105 kJ/mol and Ea

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-011007