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5 mole of an ideal gas expand reversibly from a
P volume of \( 8 \mathrm{dm}^{3} \) to \( 80 \mathrm{dm}^{3} \) at a temperature of

W \( 27^{\circ} \mathrm{C} \). The change in entropy is:
(1) \( 41.57 \mathrm{JK}^{-1} \)
(2) \( -95.73 \mathrm{JK}^{-1} \)
(3) \( 95.73 \mathrm{JK}^{-1} \)
(4) \( -41.57 \mathrm{JK}^{-1} \)
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