PX284 - C1a - boltzmann entropy formula

• the entropy associated with a macrostate of an isolated system in an equilibrium is given by the boltzmann entropy formula:

where, $\mathrm{\Omega }$ is the number of equally likely microstates associated with this macrostate

• consequently, the more microstates accessible, the less defined is the system, and the greater the entropy
• thus entropy is related to disorder