irreversible system


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Tiffany Cao 1D
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irreversible system

Postby Tiffany Cao 1D » Sun Jan 28, 2018 2:20 pm

How do you find the change in entropy when dealing with an irreversible system?

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Re: irreversible system

Postby Manvir2K » Sun Jan 28, 2018 3:45 pm

Since entropy is a state function, it doesn't matter what path was used to get to the final condition. Therefore, to find entropy for irreversible system, you can use the same formula that is used for reversible system since it doesn't matter how the final entropy was reached.

Dylan Davisson 2B
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Re: irreversible system

Postby Dylan Davisson 2B » Sun Jan 28, 2018 3:53 pm

To find the change in entropy of an irreversible expansion at a constant temperature, you could use the equation deltaS=nRln(V2/V1). This change in entropy equation can be used for both reversible and irreversible expansions, because entropy is a state function and is independent of the path taken to get from its initial to final value.

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