Second Law of Thermodynamics

Written by Jerry Ratzlaff on . Posted in Thermodynamics

The second law of thermodynamics (entropy) states that heat cannot pass from a cold body to a hot one by a self-acting process without the help of an external influence.  Entropy is the measure of disorder within a system. The more disorder within the system, energy becomes less available to do work.

Second Law of Thermodynamics formula

\( \Delta S = \frac {\Delta Q} {T}   \)


\(\Delta S\) = entropy differential

\(\Delta Q\) = heat differential (energy)

\(T\) = temperature


Tags: Equations for Energy Equations for Entropy