## Reversible but not-isothermal expansion?

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

sofiakavanaugh
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### Reversible but not-isothermal expansion?

Will there ever be a case where a reversible process is not isothermal? And how would calculating entropy for that be different?

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### Re: Reversible but not-isothermal expansion?

I too would like to know if this is possible.

Anne 2L
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### Re: Reversible but not-isothermal expansion?

Same. It seems like every problem referring to a reversible system also mentions that the system is isothermal. I was wondering if the fact that the system is isothermal makes it reversible, but that correlation doesn't seem to conceptually or mathematically add up for me.

JamesAntonios 1E
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### Re: Reversible but not-isothermal expansion?

That could work. However, delta U would have to be given. But we do have an equation for a reversible reaction that is not isothermal for work.