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In a vessel, the gas is at a pressure P. If the mass of all the molecules is halved and their speed is doubled, then the resultant pressure will be
Options
(a) 4 P
(b) 2 P
(c) PVᵞ = constant
(d) P/2
Correct Answer:
2 P
Explanation:
P = 1/3 mn / V . V²ᵣₘₛ When mass is halved and speed is doubled then
Resultant pressure, Pᵗ = 1/3 x m/2 x n/V (2vᵣₘₛ)² = 2 P.
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Topics: Behavior of Perfect Gas and Kinetic Theory
(34)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A lens having focal length f and aperture of diameter d forms an image of intensity I
- Hydrogen atom in ground state is excited by a monochrmatic radiation of λ=975 Å
- A jar is filled with two non-mixing liquids 1 and 2 having densities
- A magnet of length 10 cm and magnetic moment 1 A-m² is placed
- A uniform plank of Young’s modulus Y is moved over a smooth horizontal surface
Topics: Behavior of Perfect Gas and Kinetic Theory (34)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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