A vessel of volume V is required to be evacuated by means of a piston air pump that…
Physics · JEE Main · NTA Exams — Kinetic Theory of Gases
A vessel of volume V is required to be evacuated by means of a piston air pump that captures volume ΔV in each stroke, how many strokes will reduce the pressure in the vessel η times? Assume the process to be isothermal and the gas to be ideal.
- \(\text { sn n }\)
- \(\frac{\ln \eta}{\ln \left(1-\frac{\Delta V}{V}\right)}\)
- \(\frac{2 \ln \eta}{\ln \left(1+\frac{\Delta V}{V}\right)}\)
- \(\frac{\ln \eta}{\ln \left(1+\frac{\Delta V}{V}\right)}\)
Answer
(B) (1- V V )
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