Which of the following thermodynamic quantities is definitively a state function? — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

The expression $H - TS$ is equal to the Gibbs Free Energy ($G$) at constant temperature, which is a state function. Heat ($q$) and work ($w$) are path functions, though their sum ($q+w$) equals $\Delta U$, a state function.