Also useful would be how this links to liquid-liquid phase transitions. I am informed that if the mixing enthalpy is larger than the latent heat of melting then the liquid-liquid phase transition will be stable.
Simplest, most informative answer will get the prize!
2006-10-18 06:11:11 · 2 answers · asked by helen g 3 in Science & Mathematics ➔ Chemistry
The excess enthalpy relative to the mechanical mixture is known as the enthalpy of mixing, DHmix. This can either be positive or negative, or zero.
http://www.doitpoms.ac.uk/tlplib/solid-solutions/images/image005.gif
If DHmix = 0, the solution is said to be ideal, and for DHmix 0, the solid solution is said to be non-ideal
A simple expression for the enthalpy of mixing can be derived by assuming that the energy of the solid solution arises only from the interaction between nearest-neighbour pairs.
http://www.doitpoms.ac.uk/tlplib/solid-solutions/images/image005.gif
2006-10-18 07:26:46 · answer #1 · answered by Answerer17 6 · 0⤊ 0⤋
Hun, what are you talking about? I couldn't answer that if my life depended on it!
2006-10-18 13:16:30 · answer #2 · answered by pollywollydoda 3 · 0⤊ 0⤋