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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Thermodynamics

Olympiad workbook · NSEP · Thermodynamics

An ideal gas ( n moles) is initially at pressure P and temperature...

An ideal gas (

n

moles) is initially at pressure P and temperature T . It is cooled isochorically to a pressure

\frac{P}{4}

. The gas is then expanded at a constant pressure so as to attain back its initial temperature T. Work done by gas during the entire process is

Options

A $\frac{5}{4} n R T$
B $\frac{3}{4} n R T$
C $\frac{1}{4} n R T$
DZero

Correct answer

B. $\frac{3}{4} n R T$

Step-by-step solution

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