Szukana fraza: [Abstract = "Entropy generation is a crucial aspect of fluid dynamics and happens during all flow processes. In a sense, entropy indicates how to minimise thermal energy losses. This study examines entropy generation for a magnetohydrodynamic Casson fluid flow subject to a vertical cone. Here, impact of reaction by chemical and diffusion\-thermo is scrutinized. Physical aspects of radiative flux transverse to the surface are deliberated. The governing non\-linear PDEs and the total entropy expression are non\-dimensionalized with the dimensionless quantities."]