In which of the following processes is energy | vedclass

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Question

(C) Energy is released when an electron is added to a neutral atom to form an anion,a process known as electron gain enthalpy. For the process $Cl + e

Vedclass · Accepted Answer

$Cl + e^{-} 	o Cl^{-}$

Vedclass · Answer

(C) Energy is released when an electron is added to a neutral atom to form an anion,a process known as electron gain enthalpy. For the process $Cl + e^{-} 	o Cl^{-}$,the electron gain enthalpy is negative,meaning energy is released. In the case of $O^{-} + e^{-} 	o O^{2-}$,energy is absorbed because of the strong electrostatic repulsion between the incoming electron and the negatively charged $O^{-}$ ion. Processes $Cl 	o Cl^{+} + e^{-}$ and $Ne + e^{-} 	o Ne^{-}$ are endothermic processes requiring energy input.

In which of the following processes is energy released?

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