Entropy Units

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Andy Nguyen 1A
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Joined: Thu Jul 27, 2017 3:00 am

Entropy Units

Postby Andy Nguyen 1A » Sat Jan 27, 2018 12:21 pm

Since entropy is the number of states a system can have, is there units for entropy?

Brandon Fujii 1K
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

Re: Entropy Units

Postby Brandon Fujii 1K » Sat Jan 27, 2018 12:30 pm

Entropy is also represented by the equation

deltaS= Qrev/T

Therefore the units of Entropy are J * K-1

Posts: 52
Joined: Sat Jul 22, 2017 3:01 am

Re: Entropy Units

Postby skalvakota2H » Sat Jan 27, 2018 2:09 pm

Entropy is simply energy divided by temperature, which yields the unit of Joules per Kelvin (J)*(K^-1).

Note that another property is the entropy of a pure substance, which is given by entropy per unit amount of substance. The unit for this is given by J*(K^-1)*(mol^-1).

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