question_104326

Question

For a sample of perfect gas when its pressure is changed isothermally from $$P_i to P_f$$, the entropy change is given by:

Accepted Answer

$$Delta S=nRlnfrac{P_i}{P_f}$$

Answer

$$Delta S=nRlnfrac{P_f}{P_i}$$

Answer

$$Delta S=nRTlnfrac{P_f}{P_i}$$

Answer

$$Delta S=RTlnfrac{P_i}{P_f}$$

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For a sample of perfect gas when its pressure is changed isothermally from , the entropy change is given by:Option: 1 Option: 2 Option: 3 Option: 4

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Posted by

Kuldeep Maurya

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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
$\Delta S=RTln\frac{P_i}{P_f}$