Year 12: Cambridge Physics Problem (Thermal System)

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SUMMARY

The discussion focuses on a thermal system involving two cylinders, A and C, containing an ideal gas at different pressures (2p and p) and equal volumes (V). When a valve is opened, gas flows from cylinder A to cylinder B while maintaining the pressure in A at 2p using a piston. The final temperature in both cylinders will equal the initial temperature T, and the final volume of gas in cylinder A will be V/2, as the gas equilibrates between the two cylinders.

PREREQUISITES
  • Understanding of ideal gas laws
  • Knowledge of thermal equilibrium concepts
  • Familiarity with pressure-volume relationships in thermodynamics
  • Basic principles of piston-cylinder systems
NEXT STEPS
  • Study the ideal gas law and its applications in thermal systems
  • Learn about thermal equilibrium and its implications in closed systems
  • Explore pressure-volume work in piston-cylinder arrangements
  • Investigate the concept of adiabatic processes in thermodynamics
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Students studying thermodynamics, physics educators, and anyone interested in understanding the behavior of gases in thermal systems.

johnconnor
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Two cylinders A and C of equal volume V contain the same ideal gas at temperature T and at pressures 2p and p respectively. A valve connecting the two cylinders is opened slightly and as the gas leaks from A to B, the pressure in A is maintained at 2p by pushing in a piston. The process is continued until the gas in cylinder B is also at 2p. If there is good thermal contact between the cylinders but the are thermally insulated from their surroundings, find:
(i) The final temperature in terms of T
(ii) the final volume of gas in cylinder A in terms of V.

Before I attempt the question, may I ask if the final temperature will be the same for both sides of the cylinder? What about the pressure? I'm still visualising the problem. Thank you!
 
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Hi johnconnor! :smile:

johnconnor said:
\
Before I attempt the question, may I ask if the final temperature will be the same for both sides of the cylinder?

At equilibrium(final state) the temperatures will definitely be equal.
What about the pressure?
johnconnor said:
pressure in A is maintained at 2p by pushing in a piston. The process is continued until the gas in cylinder B is also at 2p

:wink:
 

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