Chemistry-Ionization Energy

NEET Chemistry Ionization Energy MCQ Question

Type: MCQ-numerical-Medium-Class 11

Calculate the ionization enthalpy of atomic hydrogen in terms of J mol^-1, given that the energy of an electron in the ground state of the hydrogen atom is -2.18×10^-18 J.

A

31×10^6 J mol^-1

B

18×10^5 J mol^-1

C

31×10^5 J mol^-1

D

18×10^6 J mol^-1

Correct Answer

Option D

Detailed Explanation

The ionization enthalpy is calculated using the energy of one electron, -2.18×10^-18 J, multiplied by Avogadro's number (6.022×10^23 mol^-1) to convert to J mol^-1, resulting in 2.18×10^6 J mol^-1.

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