Define threshold energy.

Define threshold frequency.

In a reaction, the threshold energy is equal to: .

For a hypothetical reaction, the mean potential energies of reactants and products are 40 and 25 kcal per mol respectively. Calculate the activation energies of the forward and the reverse reactions if the threshold energy is 65 kcal. Also calculate the heat of the reaction.

What is threshold energy ?

What is the difference between activation energy and threshold energy?

What is the relationship between activation energy and threshold energy ?

The threshold energy of a chemical reaction depends upon: