Thermo-diffusion revisited: A comparative approach between two recent thermodynamic formalisms

peer reviewedExtended irreversible thermodynamics and the general equation for the non-equilibrium reversible-irreversible coupling are two thermodynamic theories that have recently received much attention, not only from the fundamental but also from the practical point of view. The objective of the present work is to compare the respective merits of these two approaches by emphasising their similarities and differences. To avoid formal and tedious developments, we have applied both formalisms to a concrete problem, namely thermo-diffusion in a binary fluid mixture of nonviscous fluids