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QJEEM21Ch5f19: JEE Main 2021 Chemistry - Class 11 JEEM21Ch5f19 Solution: An exothermic reaction X Y has an activation energy 30 kJ mol 1 …

An exothermic reaction X →\to Y has an activation energy 30 kJ mol −- 1. If energy change Δ\Delta E during the reaction is −- 20 kJ, then the activation energy for the reverse reaction in kJ is ___________. (Integer answer)

Step-by-Step Verified Solution

X →\to Y

Δ\Delta E = (Ea)f – (Ea)b

⇒\Rightarrow – 20 = 30 – (Ea)b

⇒\Rightarrow (Ea)b = 50 kJ

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