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the amount of energy released when 10^(6...

the amount of energy released when `10^(6)` atoms of iodine in vapour state are converted to `I^(-)` ions is `4.8 xx 10^(-13) J`. What is the electron affinity of iodine in ev/atom.

A

`2.0`

B

`2.5`

C

`2.75`

D

`3.06`

Text Solution

Verified by Experts

The correct Answer is:
D
`because` Energy released for `10^(6)` atoms `=4.9xx10^(-13)J`
`therefore` Energy released for 1 atom `=(4.9xx10^(-13))/(10^(6))J`
`=(4.9xx10^(-13)xx10^(-6))/(1.6xx10^(-19))`
`=3.06eV`.
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ERRORLESS -CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES -Ordinary Thinking Objective Questions Electron affinity
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  10. Which one of the following is an incorrect statement?

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  18. Nitrogen has lower electron affinity than its preceding element carbon...

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  19. In comparison with alkali metals, the electron affinity of halogens is

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