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For a sample of perfect gas when its pressure is changed isothermally from $P_i\ to\ P_f$ , the entropy change is given by:
Option: 1
$\Delta S=nRln\frac{P_f}{P_i}$

Option: 2
$\Delta S=nRln\frac{P_i}{P_f}$

Option: 3
$\Delta S=nRTln\frac{P_f}{P_i}$

Option: 4
$\Delta S=RTln\frac{P_i}{P_f}$

Answers (1)

best_answer

The Correct answer is option 1.

Posted by

Kuldeep Maurya

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