What is the primary thermodynamic property that remains constant during a throttling process, such as the expansion of a gas through a porous plug?

💡 Solution & Explanation

A throttling process is a steady-flow adiabatic expansion where a fluid flows through a restricted opening or porous plug, resulting in a pressure drop while enthalpy remains constant. This is classified as an isenthalpic process because heat transfer and work done are negligible. Thermodynamic processes are core concepts tested in general physics questions.