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PV Work

Work done by ...

Question

Work done by the gas in $A B$ process is:

A

6.16 k J

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B

308.3 k J

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C

4.61 k J

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D

0 k J

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Solution

The correct option is C $4.61 k J$
The work done in an isothermal process AB is given by the expression as follows:
$W = - 2.303 n R T \times l o g (\frac{V_{B}}{V_{A}})$
Substituting values in the above expression.
$W = - 2.303 \times 2 \times 8.314 \times 200 \times l o g (\frac{1}{4}) = 4610.2 J = 4.61 k J$

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