Reversible heat and entropy change

symbols, variables and units

S: entropy (J/K); Q_rev: reversible heat (J); T: K.

applicable conditions and boundaries

Only reversible paths can be directly equal; irreversible processes need to account for entropy generation.

formula source code

The following is a copyable LaTeX expression.

dS=\frac{\delta Q_{\mathrm{rev}}}{T}

Reference and Extended Learning

is organized according to model definition and assumptions. Please check actual conditions and original literature before engineering, research and clinical use.