SATHEE: Thermodynamics Question 254

Thermodynamics Question 254

Question: An ideal gas is initially at $P_{1}$ , $V_{1}$ is expanded to $P_{2}$ , $V_{2}$ and then compressed adiabatically to the same volume f[ and pressure $P_{3}$ If W is the net work done by the gas in complete process which of the following is true?

Options:

A) $W > 0; P_{3} > P_{1}$

B) $W < 0; P_{3} > P_{1}$

C) $W > 0; P_{3} < P_{1}$

D) $W < 0; P_{3} < P_{1}$

Show Answer

Answer:

Correct Answer: B

Solution:

[b] In the first process W is +ve as $Δ V$ is $P_{3}$ positive, in the P1 second process W is $P_{2}$ -ve as $Δ V$ is $v e$ and area under the curve of second process is more

$∴$ Net Work $< 0$ and also $P_{3} > P_{1} .$

Thermodynamics Question 254

Question: An ideal gas is initially at $P_{1}$ , $V_{1}$ is expanded to $P_{2}$ , $V_{2}$ and then compressed adiabatically to the same volume f[ and pressure $P_{3}$ If W is the net work done by the gas in complete process which of the following is true?

Options:

Answer:

Solution:

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Thermodynamics Question 254

Question: An ideal gas is initially at P1 , V1 is expanded toP2 , V2 and then compressed adiabatically to the same volume f[ and pressure P3 If W is the net work done by the gas in complete process which of the following is true?

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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Question: An ideal gas is initially at $P_{1}$ , $V_{1}$ is expanded to $P_{2}$ , $V_{2}$ and then compressed adiabatically to the same volume f[ and pressure $P_{3}$ If W is the net work done by the gas in complete process which of the following is true?