Chesworth and Dejou applied this simple equation to work in soil chemistry, as a basis for the Hume-
Chesworth and Dejou applied this simple equation to work in soil chemistry, as a basis for the Hume-Rothery rules. It can be extended to flow systems with the introduction of feed streams and extensive variables, and is sometimes used in conjunction with DePriester charts to tabulate data. It can be quickly transformed into Euler's formula for simple polyhedra and arises out of an equation of its namesake and Duhem. Its mathematical formulation for a system at equilibrium equates the number of components plus 2 to the degrees of freedom plus the number of distinct states. FTP, name this basic rule of thermodynamics named for a guy who also has a certain free energy.
Chesworth and Dejou applied this simple equation to work in soil chemistry, as a basis for the Hume-Rothery rules.
Gibbs phase rule (prompt Gibbs)