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Internal Energy

1 mole of a p...

Question

1 mole of a perfect gas expands isothermally to 10 times its original volume. The change in entropy is:

A

100.0 R

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B

10.0 R

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C

2.303 R

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D

0.1 R

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Solution

The correct option is C $2.303 R$
$Δ S = 2.303 n R l o g \frac{V_{2}}{V_{1}}, n = 1$

$Δ S = 2.303 R l o g \frac{10}{1}$

$Δ S = 2.303 R$

Hence, option C is correct.

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