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 what is the difference between electron affinity and electron gain enthalpy

The Electron affinity of a molecule or an atom is the energy change when an electron is added to the neutral atom to form a negative ion. This property can only be measured in an atom in gaseous state.

X + e− → X−

The electron affinity, Eea, is defined as positive when the resulting ion has a lower energy, i.e. it is an exothermic process that releases energy:

Eea = Einitial − Efinal

Also, electron affinity is often described as the amount of energy required to detach an electron from a single charged  negative ion, i.e. the energy change for the process

A molecule or atom that has a positive electron affinity is often called an reactions.

but electron gain enthalpy refers to the tendency of an isolated gaseous atom to accept an additional electron to form a negative ion.

i hope u understood

best of luck!

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thnx bro

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what is mean by electron affinity

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 is it right ans?

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No, BRO. electron gain enthalpy is as same as electron affinity.

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kk dude

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Electron affinity (Eea) of an atom or molecule is defined as the amount of energy released when an electron is added to a neutral atom or molecule to form a negative ion.

X + e → X + energy

It is the energy difference between the lowest (ground) state of the neutral and the lowest state of the corresponding negative ion. Electron affinity can be positive or negative.

Eea = E initial E final

And

Electron Gain Enthalpy (ΔegH) is defined as the enthalpy change when an electron is added to a neutral gaseous atom (X) to convert it into a negative ion.

X(g) + e- → X-(g)

The electron gain enthalpy can be positive or negative.

The tendency for atoms of neutral elements to gain electrons is measured by the electron affinity. This is numerically equal to the negative of the electron gain enthalpy, which is the enthalpy change when a gas-phase atom gains an electron.

Electron affinity refers really to the energy (not enthalpy).

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Actually Electron Gain Enthalpy(E.G.E) is in negative and ELECTRON AFFINITY is negative of ELECTRON GAIN ENTHALPY i.e the value of E.a. will be positive 

and E.G.E will be negative ... From this you can conclude that they are numerically equal not in signs

ALL D Best 

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Electron affinity = - Electron Gain Enthalpy. Just signs are opposites. More negative is the value more is the EGE. But during Comparision of EA , we consider only magnitude
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What is difference between electron gainenthapy and electron affinity 
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