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Enegy of an electron in the ground state...

Enegy of an electron in the ground state of the H. atom is `-2.18xx10^(-18)J`. Calculate the ionisation enthalpy off atomic hydrogen in terms of `J*mol^(-1)`.

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Amount of energy required to remove an electron from a hydrogen atom at ground state=`E_(oo)-E_(1)=0-E_(1)`.
`=-(-2.18xx10^(-18)]=2.18xx10^(-8)J`
`therefore` Ionisation enthalpy of atomic hydrogen per mole
`=2.18xx10^(-18)xx6.022xx10^(23)=1312.8xx10^(3)J*mol^(-1)`.
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