For an endothermic reaction, energy of activation is E a and enthalpy of reaction is Δ H (both of these in kJ / mol ). Minimum value of E a will beNEET 2010 (Screening)

Question

For an endothermic reaction, energy of activation is E a ​ and enthalpy of reaction is Δ H (both of these in kJ / mol ). Minimum value of E a ​ will beNEET 2010 (Screening)

TestHub · Accepted Answer

Key Idea In endothermic reactions, energy of reactants is less than that of the products. Potential energy diagram for endothermic reactions is,
where, $E_{a} =$ activation energy of forward reaction $E_{a}^{'} =$ activation energy of backward reaction $Δ H =$ enthalpy of the reaction From the above diagram, $E_{a} = E_{a}^{'} + Δ H$ Thus, $E_{a} > Δ H$

Chemistry - Chemical Kinetics Question with Solution | TestHub

Options:

Doubts & Discussion