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How will the rate of reaction be affected by the presence of catalyst? The rate constant for a…

Chemistry20263 marksNumerical
(i)
How will the rate of reaction be affected by the presence of catalyst?
(ii)
The rate constant for a reaction is $0\cdot05\text{ s}^{-1}$ at $300\text{ K}$ and $0\cdot5\text{ s}^{-1}$ at $310\text{ K}$. Calculate the activation energy for the reaction. ($R = 8\cdot314\text{ J K}^{-1}\text{mol}^{-1}$)

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Chemical Kinetics

From ISC 2026 Improvement Chemistry Paper 1, question 17.