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Calculate the work done when 2 moles of ...

Calculate the work done when 2 moles of hydrogen expand isothermally and reversibly at `27^(@)C` from 15 to 50 litres.

A

`14.45Kcal`

B

`1445J`

C

`-1445cal`

D

`14.45KJ`

Text Solution

Verified by Experts

The correct Answer is:
C
`W=-2.303nRT` lon`(V_(2))/(V_(1))`
`=-2.303xx2xx2xx300` log `(50)/(15)`
`=-2763.6(log10-log3)`
`=-2763.6(1-0.4771)`
`=-2763.6xx0.5229=-1445` cal
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