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?

Similar Questions

Which of the following will have the most negative electron gain enthalpy and which the least negative?
$P, S, Cl, F$
Explain your answer.

Choose the correct order of $\Delta H_{eg}$ ?
$(\Delta H_{eg} = \text{electron gain enthalpy})$

Assertion $(A)$: Fluorine has a smaller negative electron gain enthalpy than chlorine.
Reason $(R)$: The electron-electron repulsion is higher in chlorine than in fluorine.

Which of the following is correct for the electron affinity of halogens?

For the process
$A_{(g)} + e^- \to A^{-}_{(g)};$ $\Delta H = x$
and $A^{-}_{(g)} \to A_{(g)} + e^-;$ $\Delta H = y$
Select the correct statement:

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