## Isothermal Reactions: Reversible expansion

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

Erika Gonzalez 1F
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Joined: Wed Sep 21, 2016 2:57 pm

### Isothermal Reactions: Reversible expansion

For an isothermic reaction, will it always have reversible expansion? And I don't quite understand the concept of the reversible expansion diagram in the course reader on page 30. I only know that it occurs when the pressure is changing within the expansion of the gas.

Maria_Contreras_3A
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### Re: Isothermal Reactions: Reversible expansion

I think that it is fair to say that for the example on page 30 of the course reader, the isothermic reaction will have a reversible expansion because temperature is constant (by the input of heat of the heat reservoir replacing the energy lost by the system doing work) and the pressure changing with the gas expansion both in the system and its surrounding. However, a reversible expansion is more define by the fact that the expansion is going slowly, which means at any given moment the system can be reversed. I hope this helps in understanding what a reversible system is.