Constant term in the adiabatic equation

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Discussion Overview

The discussion revolves around the constant term in the reversible adiabatic equation PV^(gamma) = constant. Participants are exploring the nature of this constant, its dependencies, and the implications of its definition within the context of adiabatic processes.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant seeks clarification on what the constant term in the adiabatic equation depends on and requests a mathematical expression for it.
  • Another participant asserts that the constant should not depend on anything, questioning the nature of constants in general.
  • A third participant provides a mathematical representation of the constant in terms of initial pressure and volume, suggesting that it relates to specific initial conditions.
  • Further, a participant argues that a constant can still depend on certain parameters, using the example of the ebullioscopic constant to illustrate that dependencies can exist even for constants.
  • Another participant emphasizes that during an adiabatic process, the product PV^(gamma) remains unchanged, reinforcing the idea of constancy in the context of adiabatic changes.

Areas of Agreement / Disagreement

Participants express differing views on whether the constant in the adiabatic equation can depend on other parameters, leading to an unresolved debate on the nature of constants in this context.

Contextual Notes

There are limitations in the discussion regarding the definitions of constants and the specific conditions under which the adiabatic equation applies. The mathematical steps and assumptions about the parameters involved are not fully resolved.

mechgen
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Hi there! I am working on a project that requires some idea of adiabatic processes. I know the basics of the said topic and I'm currently stuck with the reversible adiabatic equation PV^(gamma)=constant.. and want to know what is the constant term i.e. on what parameters it depends and what is its mathematical equation? Kindly help me if you can...
 
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It is a constant,right.Then why should it depend on anything.
 
[tex]PV^{\gamma}=P_1V_1^{\gamma}[/tex]

where P1 and V1 are the initial pressure and volume.
 
It is a constant,right.Then why should it depend on anything.

well as far as I know...a constant term doesn't mean that it doesn't depend on any other parameter. Take the ebullioscopic constant for instance..that depends on certain values of specific heat and and the temperature etc... I hope you get my point!
 
well,for adiabatic process it means that if system is going under adiabatic change then that Pv^gamma would not change.
 

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