Question

The total energy in the first excited state of hydrogen atom is -3.4ev what is potential energy and kinetic energy of electron in this state

Answer 1

Answer:

If potential energy of an electron in a hydrogen atom in first excited state is taken to be zero, kinetic energy (in eV) of an electron in ground state will be. For this to be zero, We must add 6.8 eV.

Answer 2

The potential energy and kinetic energy in the first excited state of hydrogen atom are -6.8 eV and 3.4 eV respectively.

• The total energy of the atom is the sum of the kinetic and potential energy.
• For singly occupied system the kinetic energy and the total enrgy of the atom in a given state are equal in magnitude and opposite in sign.
• Hence the kinetic energy of the first excited state of hydrogen atom is eqqual to 3.4 eV.
• Potential energy is double of the total energy and is equal to -6.8 eV.