Assertion: Ea of the forward reaction is higher than that of backward reaction in a reversible endothermic reaction. Reason: Increasing the temperature of the substance increases the fraction of molecules which collide with energies greater than Ea.

Question

Assertion: Ea of the forward reaction is higher than that of backward reaction in a reversible endothermic reaction. Reason: Increasing the temperature of the substance increases the fraction of molecules which collide with energies greater than Ea. (A) If both assertion and reason are true and reason is the correct explanation of assertion. (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false. (D) If both assertion and reason are false.

Tardigrade Admin · Accepted Answer

Threshold energy of reactants is less than that of products in reversible endothermic reactions hence. Ea for forward reaction is more than Ea for backward reaction.

Q. Assertion : $E_{a}$ of the forward reaction is higher than that of backward reaction in a reversible endothermic reaction.
Reason: Increasing the temperature of the substance increases the fraction of molecules which collide with energies greater than $E_{a}$ .

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false.

If both assertion and reason are false.

Threshold energy of reactants is less than that of products in reversible endothermic reactions hence. $E_{a}$ for forward reaction is more than $E_{a}$ for backward reaction.

Q. Assertion : Ea​ of the forward reaction is higher than that of backward reaction in a reversible endothermic reaction. Reason: Increasing the temperature of the substance increases the fraction of molecules which collide with energies greater than Ea​.