Lecture 8: Work, Path & Point Functions, Exact & Inexact Differentials (Engineering Thermodynamics) @bahgalabiitdelhi7797

Uploaded October 2020 | Updated September 2026, 1 day ago

In this lecture, we continue our discussion on work. In particular, we discuss the mathematical concepts of path and point functions, and exact and inexact differentials. We show that work is a path function and differential work is an inexact differential. On the other hand, thermodynamic properties are point functions and their differentials are exact differentials. We also discuss work done in a non-equilibrium process through an example of compression of gas in a piston-cylinder arrangement. (c) Supreet Singh Bahga

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