Preferred Label : phenomenological equation;
IUPAC definition : In the following only media which are isotropic with respect to mass transport (i.e.
the transport coefficients are independent of direction) are being considered. In
the linear range (not too far from equilibrium), for uniform temperature and neglecting
external fields such as the earth's gravitational field, the flux density of species
B is related to the gradients of the electrochemical potentials of all species by
the phenomenological equation: \[N_{{B}}- c_{{B}}\ v_{{A}} - \sum _{\begin{array}{c};
Origin ID : P04540;
See also
In the following only media which are isotropic with respect to mass transport (i.e.
the transport coefficients are independent of direction) are being considered. In
the linear range (not too far from equilibrium), for uniform temperature and neglecting
external fields such as the earth's gravitational field, the flux density of species
B is related to the gradients of the electrochemical potentials of all species by
the phenomenological equation: \[N_{{B}}- c_{{B}}\ v_{{A}} - \sum _{\begin{array}{c}
