The work done in ergs for the reversible...

The work done in ergs for the reversible expansion of one mole of an ideal gas from a volume of `10` litres to `20` litres at `25^(@)C` is

A

`-2.303 xx 298 xx 0.082` log 2

B

`-298 xx 10^(7) xx 8.31 xx 2.303 log2`

C

`-2.303 xx 298 xx 0.082 log 0.5`

D

`-8.31 xx 10^(7) xx 298 - 2.303 log 0.5`

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The correct Answer is:

B

`w=-nRT ln V_(2)/V_(1) = -1 xx 8.314 xx 298 xx 2.303 log 20/10 = -298 xx 8.314 xx 10^(7) xx 2.303 log 2`

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