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    • The first ionisation potential of Na is 5.1 eV.The value of electron gained enthalpy of Na+ will be
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    The first ionisation potential of Na is 5.1 eV.The value of electron gained enthalpy of Na+ will be

    Aaghaz Haider Abbasi 1st Sep, 2019
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    Answer (1)
    Sriya Bose Student Expert 1st Sep, 2019

    Hello Aspirant!

    Ionisatiom potential is the energy required to remove electrons from 1 mol of a substance. Whereas, electron gain enthalpy is the energy released when electrons are added to 1 mol of a substance. So both the values are same in magnitude but different in sign. Therefore the electron gain enthalpy of Na+ will be (-5.1)eV.

    Hope this helps!

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