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Kinetic Theory — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsKinetic Theory1 Mark
MCQ
A cylinder containing an ideal gas is in vertical position and has a piston of mass M that is able to move up or down without friction ( figure). If the temperature is increased.
  • A
    Both P and V of the gas will change.
  • B
    Only P will increase according to Charles’ law.
  • ✓
    V will change but not P.
  • D
    P will change but not V.
✓

Answer

Correct option: C.
V will change but not P.
c. V will change but not P.
Explanation:
The pressure on the ideal gas does not changes from initial to final position. According to the given arrangement P = Mg/ A which shows that pressure is constant. As piston and cylinder is frictionless so by ideal gas equation, PV = nRT.

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