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JEE Main 202227 JuneEvening Shift

Exam: JEE Main
Year: 2022
Date: 27 June
Shift: Evening Shift
Subject: Physics
Chapter: Thermodynamics

JEE Main 2022 · 27 June · Evening Shift · Physics · Thermodynamics

For a perfect gas, two pressures P _ 1 and P _ 2 are shown in...

For a perfect gas, two pressures ${P}_{1}$ and ${P}_{2}$ are shown in figure. The graph shows

For a perfect gas, two pressures P _ 1 and P _ 2 are shown in figure. The graph shows

Options

A ${P}_{1} > {P}_{2}$
B ${P}_{1} < {P}_{2}$
C ${P}_{1} = {P}_{2}$
DInsufficient data to draw any conclusion

Correct answer

A. ${P}_{1} > {P}_{2}$

Step-by-step solution

We know that the ideal gas equation of gas is

$PV = nRT$

Keeping the temperature constant, we have, $V ∝ \dfrac{1}{P}$

As seen from graph, ${V}_{2} > {V}_{1}$ , so ${P}_{1} > {P}_{2}$ .

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