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  • Which among the following is endothermic process ?Option: 1 <img alt="\mathrm{Br_ (g) \rightarrow Br^{-} (g)}" src="/latex-image/?%5Cmathrm%7BBr_%20%

Which among the following is endothermic process ?

Option: 1

\mathrm{Br_ (g) \rightarrow Br^{-} (g)}


Option: 2

\mathrm{ H(g) \rightarrow H^{+} (g)}


Option: 3

\mathrm{Cl(g) \rightarrow Cl^{-}(g)}


Option: 4

\mathrm{(1) and (3) only}


Answers (1)

best_answer

Ionisation energy is defined as the energy required to remove a single electron from the outer shell of a neutral gaseous atom whereas Electron gain enthalpy is defined as energy released when a neutral gaseous atom takes up an extra electron.

Hence, the ionisation of gaseous hydrogen atom is endothermic process.

Hence Option 2 is correct.

Posted by

Rakesh

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