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1 mole of helium is expanded from 1 atm ...

1 mole of helium is expanded from 1 atm to 0.1 atm at `30^(@)C`. Assuming ideal behaviour, `Delta S` for the process is :

A

`38.3 JK^(-1)`

B

`76.6 JK^(-1)`

C

`19.15 JK^(-1)`

D

`100 JK^(-1)`

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The correct Answer is:
C
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