Question

explaon electron gain enthalapy..​?? plzz give the answrr

Answer 1

       ELECTRON GAIN ENTHALPY:

Electron gain enthalpy is sometimes also referred to as Electron affinity although there is a minute difference between them. Electron gain enthalpy is defined as the amount of energy released when an electron is added to an isolated gaseous atom. During the addition of an electron, energy can either be released or absorbed.

Sign Convention For Electron Gain Enthalpy:

Negative: When energy is released while accepting an electron.

Positive: When energy is supplied to an atom while adding an electron.

Exception in Electron Gain Enthalpy:

In the case of Chlorine and Fluorine, Chlorine has a higher negative electron gain enthalpy value.

In between Sulphur and Oxygen, Sulphur has a higher negative value than oxygen.

Remember:

electron gain enthalpy = electron affinity – 5/2  RT

where, R= universal gas constant

T= temperature in Kelvin scale

Answer 2

Answer:

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