Entropy Units

$\Delta S = \frac{q_{rev}}{T}$

Andy Nguyen 1A
Posts: 56
Joined: Thu Jul 27, 2017 3:00 am

Entropy Units

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

Entropy is also represented by the equation

deltaS= Qrev/T

Therefore the units of Entropy are J * K-1

skalvakota2H
Posts: 52
Joined: Sat Jul 22, 2017 3:01 am

Re: Entropy Units

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).