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Energy of an electron in the ground stat...

Energy of an electron in the ground state of the hydrogen atom is `-2.18 xx 10^(-18) J`. Calculate the ionisation enthalpy of atomic hydrogen in terms of kJ `mol^(-1)`.

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Ionisation energy `= { "( energy of the " I^(st) " orbit of hydrogne atom)" `
`= - ( 2.18 xx 10^(-18) J)`
`= 2.18 xx 10^(-18) kJ`
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