I've been working on this proof, and I just can't get it backwards or forwards, so I must be going about it wrong or missing something. I'm on a re-do for the homework, because my first attempt was completely wrong, so here I go with the second.(adsbygoogle = window.adsbygoogle || []).push({});

Any guidance would be appreciated.

1. The problem statement, all variables and given/known data

The relationship between pressure and volume of an ideal gas is expressed as pv=constant in a reversable isothermal condition. Show that the relationship between pressure and volume of the same gas is expressed as pV^gamma=constant in a reversible adiabatic condition where gamma=Cp,m/Cv,m.

2. Relevant equations

gamma=Cp,m/Cv,m.

pV^gamma=constant, rev. adiabatic

pv=constant, rev. ideal

3. The attempt at a solution

p1v1^(Cpm/Cvm)=p2v2^(Cpm/Cvm) take ln and mult both sides by the Cvm/Cpm

ln p1v1 = ln p2v2 e to both sides

p1v1=p2v2

p1v1/p2v2 = 1

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Proof that PV^gamma is constant in a reversable adiabatic condition.

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