## Isothermal reversible expansion

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

Reva Kakaria 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am
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### Isothermal reversible expansion

Could someone please explain why reversible expansion must be isothermic?

Kristen Kim 2K
Posts: 70
Joined: Fri Sep 28, 2018 12:16 am

### Re: Isothermal reversible expansion

If the system is isothermal, that means that the system and surroundings do not exchange matter or energy between each other. This is the case for a reversible expansion because the temperature must be constant in order for the volume to fluctuate so that the pressure is kept constant.