JEE Main 2012 — Thermodynamics Question with Solution
JEE Main 2012 (26 May Online)
Question
An ideal monatomic gas with pressure , volume and temperature is expanded isothermally to a volume and a final pressure . If the same gas is expanded adiabatically to a volume , the final pressure is . The ratio is
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
For isothermal process :
For adiabatic process
for monatomic gas
[From (i) ]
or,
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This is a previous-year question from JEE Main 2012, covering the Thermodynamics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.