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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
Energy released for `10^6` atoms `= 4.9 xx 10^(-13) J`
`:.` Energy released for 1 atom ` = (4.9 xx 10^(-13))/(10^6) J`
` = (4.9 xx 10^(-13) xx 10^(-6))/(1.6 xx 10^(-19))`
` = 3.06eV`.
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ERRORLESS-CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -NCERT BASED QUESTIONS (Electron Affinity)
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  2. The electron affinity for the inert gases is

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  3. The electronic configuration of the element with maximum electron affi...

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  4. Which of the following has the least electron affinity in kJ mol^(-1)?

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  5. Fluorine has lower electron affinity than chlorine because of

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  6. Which of the following species has the highest electron affinit...

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  7. Which of the following species has the highest electron affinit...

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  8. Which one of the elements has the maximum electron affinity?

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  9. Order of electron affinity of F,Cl,Br and I is

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  10. Which one of the following ionic species has the greatest proton affin...

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  11. The electron affinity of Be is almost similar to that of

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  12. The element with positive electron gain enthalpy is

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  13. Arrange S,O and Se in ascending order of electron affinity?

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  14. The energy evolved is highest for which of the following reactions

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  15. Increasing order of electron affinity is

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  16. The correct order of electron affinity of B, C, N, O is

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  17. The electron affinities of halogens are F=322, Cl=349,Be=324,I=295kJ m...

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  18. The electron gain enthalpy values (in kJ mol^(-1) ) of three halogens,...

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  19. Which of the following pairs show reverse properties on moving along a...

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