Comment on ‘Does a container of an ideal gas increase its temperature when accelerated and stopped?’

Abstract

Abstract Goh (2022 Phys. Educ. 57 023005) has very recently offered what may be construed as a mechanical proof of Joule’s principle (conversion of mechanical work to heat). Curiously, the proof takes no account of viscosity and uses only deterministic mechanics. We identify an error in his proof and offer some pedagogical clarification.