# Does entropy depends on temperature?

Does the entropy of a system depends on the system's temperature?

I know that $\Delta S_{ext}=\frac{q_{rev}}{T}$ ($q_{rev}$ is the heat in a transformation if it is reversible).

My textbook says that the entropy of the exterior always depends on that formula (so it depends on the temperature).

But it says the entropy doesn't always depends on the formula, and we can only say the that in a transformation the entropy of a system can increase or decrease. So does it depend on the temperature?

Thanks!

• Yes, entropy can depend on temperature (and often does). Examples include things like point defect populations in solids giving rise to configurational entropy, or molecule dissociation in the gas phase. May 10, 2016 at 16:45