An ideal gas traverses from an initial state to a final state . Which of the following statements co — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

(A) Entropy is inherently a state function; the formula strictly depends on initial/final state variables, entirely independent of the mechanical path. (B) Irreversible compression necessitates more mechanical work than a reversible analog, depositing extra internal energy into the gas and raising its final temperature higher. (C) Because entropy is a strict state function, returning to the exact initial state geometrically ensures $\oint dS = 0$. (D) In an exothermic reaction, surroundings absorb rejected heat, which *increases* their thermal entropy ($\Delta S_{surr} > 0$).