The value of 2^{nd} electron gain enthalpy fo | vedclass

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Question

(C) The second electron gain enthalpy is the energy change when an electron is added to a uninegative ion $(X^-)$.For oxygen $(O)$ and sulphur $(S)$,t

Vedclass · Accepted Answer

$+ 780, + 590$

Vedclass · Answer

(C) The second electron gain enthalpy is the energy change when an electron is added to a uninegative ion $(X^-)$.For oxygen $(O)$ and sulphur $(S)$,the addition of the second electron is an endothermic process due to strong inter-electronic repulsion between the incoming electron and the negative ion.The values for the $2^{nd}$ electron gain enthalpy of $O$ and $S$ are $+ 780 \ kJ/mol$ and $+ 590 \ kJ/mol$ respectively.Therefore,the correct option is $C$.

List-$I$ (Element)	List-$II$ (Electron gain enthalpy in $kJ \ mol^{-1}$)
$(A)$ $F$	$(I)$ $-141$
$(B)$ $Cl$	$(II)$ $-328$
$(C)$ $O$	$(III)$ $-200$
$(D)$ $S$	$(IV)$ $-349$

The value of $2^{nd}$ electron gain enthalpy for $O$ and $S$ will be (in $kJ/mol$)

Similar Questions

Discuss the factors affecting electron gain enthalpy and the trend in its variation in the periodic table.

In which of the following processes is the least energy required?

Match the following elements in List-$I$ with their respective electron gain enthalpy values in List-$II$:
List-$I$ (Element) List-$II$ (Electron gain enthalpy in $kJ \ mol^{-1}$)
$(A)$ $F$ $(I)$ $-141$
$(B)$ $Cl$ $(II)$ $-328$
$(C)$ $O$ $(III)$ $-200$
$(D)$ $S$ $(IV)$ $-349$

Which of the following atoms should have the highest $1^{st}$ electron affinity?

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

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