JEE Main 2012 Physics question
An ideal monatomic gas with pressure P, volume V and temperature T is expanded isothermally to a volume 2V and a final pressure . If the same gas is expanded adiabatically to a volume 2 V, the final pressure is . The ratio is
Answer: (4)
Solution
Isothermal: . Adiabatic (γ = 5/3): . Ratio , option (4).