NEET Physics Thermodynamics Questions Solved


Initial pressure and volume of a gas are P and V respectively. First it is expanded isothermally to volume 4V and then compressed adiabatically to volume V. The final pressure of gas will be [Given : γ=1.5 ]-

(1) 1P

(2) 2P

(3) 4P

(4) 8P

(2) In isothermal process P1V1=P2V2

or PV=P2×4V

P2=P4

In adiabatic process

P2V2γ=P3V3γ

P4×(4V)1.5=P2V1.5

P3=2P

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