Oct. 16 2002 : Lecture 16:

Entropy Content in Materials

Last Time

Constant $P$ and $T$ processes: $T \Delta \ensuremath{{S}_{\mbox{universe}}} = -\Delta \ensuremath{{G}_{\mbox{system}}}$

Equilibrium at Constant $P$ and $T$ processes: $\Delta \ensuremath{{G}_{\mbox{system}}} = 0$

If $\ensuremath{\overline{G}}^\alpha > \ensuremath{\overline{G}}^\beta$ then $\alpha$ can transform to $\beta$

Constant $V$ and $T$ processes: $T \Delta \ensuremath{{S}_{\mbox{universe}}} = -\Delta \ensuremath{{F}_{\mbox{system}}}$