Activation Energy for Reverse.... | JEE Main 2021 | Chemical

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JEE MAIN 2021

26-02-2021 S1

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An exothermic reaction $X \rightarrow Y$ has an activation energy $30 \mathrm{~kJ} \mathrm{~mol}^{-1}$. If energy change $\Delta \mathrm{E}$ during the reaction is -20 kJ , then the activation energy for the reverse reaction in kJ is $\_\_\_\_$ .(Integer answer)

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