The fundamentals of thermal-mass diffusion analogy
Correspondence between temperature and fractional saturation (w=C/Csat) ( w = C / C sat ) is fundamentally established. The validity of the correspondence is independent of the linearity of the sorption isotherm. Applicable to solute of any phase and absorbents that are a combination of gas, liquid, and solid. Detailed explanations provided for diffusion under complex environments. E.g. temporally varying and spatially non-uniform temperature and source.
diffusion fractional saturation concentration moisture wetness chemical potential