Question

The ionisation potential of hydrogen is 13.6eV. Calculate the energy in kJ required to produce 0.1 mole of H+ ions. (Given, 1eV=96 kJ/mol)

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Answer 1

It has given that the ionization potential energy of hydrogen is 13.6 eV.

To find : The energy in kJ required to produce 0.1 mol of H⁺ ions. (Given, 1eV = 96 kJ/mol )

solution : ionisation energy of an atom is the minimum amount of energy required to remove an electron from its isolated gaseous atom.

i.e., (1/2)H₂ + I.E ⇒H⁺ + e¯

here, I.E = 13.6 eV/atom

now energy in kJ required to produce 0.1 mole of H⁺ ions , E = no of moles × I.E × 96 kJ/mol

= 13.6 × 0.1 mol × 96 kJ/mol

= 1.36 × 96 kJ

= 130.56 kJ

Therefore the energy in kJ required to produce 0.1 mole of H⁺ ions is 130.56 kJ

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