For an endothermic reaction, $△ H$ represents the enthalpy of the reaction in $k J m o l^{- 1}$ . The minimum amount of activation energy will be:

less than zero

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equal to

△ H

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less than

△ H

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more than

△ H

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Solution

The correct option is C more than $△ H$
Activation energy is the energy which must be available to reactants to perform a reaction.
also,
energy absorbed= energy of products - energy of the reactants
For an endothermic reaction, the transition state is at a higher level than products.
so, $E_{a c t i v a t i o n} > E n t h a l p y (△ H)$

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