(B) The enthalpy change of a reaction is given by the difference between the activation energy of the forward reaction $(E_{af})$ and the activation e

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(B) The enthalpy change of a reaction is given by the difference between the activation energy of the forward reaction $(E_{af})$ and the activation energy of the reverse reaction $(E_{ab})$.$\Delta H = E_{af} - E_{ab}$Given that the activation energies are equal,$E_{af} = E_{ab}$.Therefore,$\Delta H = E_{af} - E_{af} = 0$.

Class 12 Chemistry Chemical Kinetics Collision theory, Energy of activation and Arrhenius equation

Medium

For a reaction where the activation energies of the forward and reverse directions are equal in value,then:

A
$\Delta G = 0$
B
$\Delta H = 0$
C
$\Delta S = 0$
D
The order is zero

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Class 12

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Chemical Kinetics

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Collision theory, Energy of activation and Arrhenius equation

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For a reaction where the activation energies of the forward and reverse directions are equal in value,then:

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Define the following terms:
$(1)$ Fraction of molecules
$(2)$ Frequency factor