# Constant term in the adiabatic equation

1. ### mechgen

4
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...

Last edited: Jan 5, 2013
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3. ### andrien

It is a constant,right.Then why should it depend on anything.

### Staff: Mentor

$$PV^{\gamma}=P_1V_1^{\gamma}$$

where P1 and V1 are the initial pressure and volume.

5. ### mechgen

4
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!

6. ### andrien

well,for adiabatic process it means that if system is going under adiabatic change then that Pv^gamma would not change.