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PhysicsHeat & ThermoKTGHard2 minPYQ_2021
PhysicsHardsingle choice

For an ideal gas the instantaneous change in pressurePwith volumeVis given by the equationdPdV=-aP.IfP=P0atV=0is the given boundary condition, then the maximum temperature one mole of gas can attain is: (HereRis the gas constant)

Options:

Answer:
D
Solution:

dPdV=-aP
P0PdPP=-0vadVlnPP0=-aV
P=P0e-aV
Now,PV=RT(asn=1)
P+VdPdV=RdTdV
[ for maximumT, dTdV=0]
P-aPV=0V=1a
Thus,T=PVR=P0e-1Ra=P0eRa

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG
2mℹ️ Source: PYQ_2021

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