Question

If hydrogen atom is supplied with energy of 15.8ev find the kinetic energy of ecaped electron

Answer 1

Explanation:

Energy of an electron in the first orbit is 13.6 eV

Kinetic energy =Energy supplied − I.E =15.8−13.6 =2.2eV1eV =1.6×10−19J2.2eV =2.2× 1.6×10−19J =3.5 ×10−19J

Answer 2

Answer:

The kinetic energy of electron escaped is $2.2\times1.6\times10^{-19}J$.

Explanation:

As per the question, the electron has been escaped from the ground state and gained some kinetic energy

The energy supplied to the hydrogen atom = 15.8 eV

The energy of the electron of a hydrogen atom in the ground state = 13.6 eV

Therefore, kinetic energy gained by electron = (15.8 - 13.6) eV

Kinetic energy of electron = 2.2 eV

Convert the energy into joules

So, the kinetic energy of electron = $2.2\times1.6\times10^{-19}J$