Question

How do you calculate boiling point?

Answer 1

`DeltaH^o - TDeltaS^o = 0` at Equilibrium (i.e., boiling point) and 'T' is the Thermodynamic Boiling Point for the phase transition.

Explanation:

From `DeltaH^o`-`TDeltaS^o` = 0 => Equilibrium Conditions

=> `DeltaH^o = TDeltaS^o` => `T = (DeltaH^o"/"DeltaS^o")`

`DeltaH^o = sumn*DeltaH^o(Products) - sumn*DeltaH^o(Reactants)`

`DeltaS^o = sumn*S^o(Products) - sumn*"S^o(Reactants)`

Example:
Determine the Thermodynamic Boiling Point of Water.