The minimum energy level necessary to permit a reaction to occur is :

The minimum energy necessary to permit a reaction is

The minimum energy required to permit a reaction is

What is the minimum energy (in eV) necessary to liberate an electron from the ground state of a Li^(++) (Z=3), according to Bohr's theory ?

A : In presence of +ve catalyst, activation energy & threshold energy decreases. R : Minimum energy required to permit a reaction is known as threshold energy.

A : In presence of +ve catalyst, activation energy & threshold energy decreases. R : Minimum energy required to permit a reaction is known as threshold energy.