Question

8. The given reaction.
X (g) + e^- = X-(g)
is an example of
(a) electron gain enthalpy
(b) electron loss enthalpy
(c) jonisation enthal
( (d) Boch (a) and to​

Answer 1

Answer:

b electron loss enthalpy

Answer 2

The given reaction is an example of a)Electron gain enthalpy.

Electron gain enthalpy.

• When an isolated gaseous atom acquires an electron, it also acquires a negative charge and transforms into an anion.

• Energy is liberated during this e- gain. This energy is called electron gain enthalpy.
• The reaction is given by:

                 X +e- → $X^{-}$

Incorrect options

• b)Electron loss enthalpy refers to the enthalpy which is gained on the formation of a cation.
• c) Ionisation enthalpy refers to the energy which is released due to the dissociative reaction of a compound into its individual ions.
• d)It cannot be both a) and b) since e- is lost in one while gained in the other processes which are contradictory.

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