Question

One mole of an ideal gas expands isothermally to ten times its original volume. The change in entropy at 298 K will be:

• A. $0.1\times 298\times R$
• B. $2.303\times 298\times R$
• C. $2.303R$
• D. $0.1R$

Answer 1

The correct option is C $2.303R$

$\Delta S=2.303nRlog\frac{V_2}{V_1}$
$\Delta S=2.303\times R\times log\frac{10}{1}=2.303R$