2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/83531It is revealed that distribution functions of practical gases relate to singularities and such singularities can, with molecular motion, spread to the entire region of interest. It is also shown that even common continuous distribution functions involve a similar quasi-discontinuity difficulty.8 pages, 6 figuresData Analysis, Statistics and ProbabilitySingularities in kinetic theorytext