Match the following

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Solution

Activation energy: the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
Change in enthalpy is the difference between the potential energies of products and of reactants.
The activation energy for the reverse reaction is the sum of the enthalpy - $Δ H$ and the activation energy - $E_{a} c t$ for the forward reaction.

a - Potential Energy of Reactants
b - Activation energy of forward reaction
c - Change in enthalpy
d - Activation energy of backward reaction

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