Two Part System

#Physics

Extensive Quantities

• $\displaystyle U=U_{1}+U_{2}=-\frac{ \partial }{ \partial \beta } \ln Z=\tau ^{2}\frac{ \partial y }{ \partial \tau } \ln Z$
  • $\displaystyle Z$ is the [Partition Function]
• $\displaystyle V=V_{1}+V_{2}$
• $\displaystyle N=N_{1}+N_{2}$
• $\displaystyle \sigma={\sigma}{1}+{\sigma}{2}$

Intensive Quantities

• $\displaystyle \Omega=\Omega_{1}\Omega_{2}$