Thermodynamics problem (zemansky 3.1)

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Homework Help Overview

The discussion revolves around a thermodynamics problem related to a gas in a cylinder, specifically addressing the work done during a quasi-static process. The original poster seeks to determine the final amount of gas in the cylinder while considering the conditions of the process.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to understand how to calculate the final amount of gas, given the quasi-static nature of the process. Some participants question the completeness of the problem statement, noting missing definitions and assumptions.

Discussion Status

Participants are exploring the assumptions regarding temperature and pressure equilibrations during the process. Some guidance has been provided regarding the expected assumptions, but there is no explicit consensus on the problem's details or the approach to take.

Contextual Notes

There are noted constraints regarding the definitions of variables and the assumptions about temperature and pressure that are expected to be made during the problem-solving process.

Titan97
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Homework Statement


IMG_20151127_095404_526.JPG


Homework Equations


$$W=-\int PdV$$

The Attempt at a Solution


The gas fills the cylinder slowly and any increase in pressure of system is countered by the upward motion of piston. So the process is quasi-static.
But how do I find final amount of gas in the cylinder?
 
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You did not show the complete problem. Vo is not even defined.
 
Oops.
IMG_20151127_102356_286.JPG
 
They apparently expect you to assume that the temperature of the gas does not change during the process, and that even the gas in the original container equilibrates with the temperature of the surrounding air. They also expect you to assume that the final pressure of the gas in the container equilibrates with the pressure of the gas in the cylinder.

Chet
 

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