## Isobaric Reversible Expansion

isochoric/isometric: $\Delta V = 0$
isothermal: $\Delta T = 0$
isobaric: $\Delta P = 0$

KDang_1D
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### Isobaric Reversible Expansion

Today (Monday Week 5), Dr. Lavelle talked about isothermic reversible reactions. The external pressure decreases gradually, allowing heat to instantaneously enter the system as it does work. What would this process look like for reversible expansions for which we use the formula $-\int_{V_{1}}^{V_{2}}PdV$

KaleenaJezycki_1I
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### Re: Isobaric Reversible Expansion

Are you asking for this equation : -nRTlog (V2/V1) or how he derived this?

Alex Tchekanov Dis 2k
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### Re: Isobaric Reversible Expansion

In the case of isothermic reversible reactions, the pressure decreases thus is not constant. That is why you have to use this equation: -nRTlog (V2/V1)

KDang_1D
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### Re: Isobaric Reversible Expansion

I guess I'm asking, how would this piston function in practice/how could you model this experimentally?

DesireBrown1J
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### Re: Isobaric Reversible Expansion

Where exactly in the textbook does it talk about isobaric reversible reactions?