2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138146Entropy production due to shear viscosity during the continuous freeze-out of a longitudinally expanding dissipative fluid is addressed. Assuming the validity of the fluid dynamical description during the continuous removal of interacting matter we estimated a small entropy production as function of the freeze-out duration and the ratio of dissipative to non-dissipative quantities in case of a relativistic massless pion fluid.5 pages, 3 figuresNuclear Theorytext