Chemistry - Thermodynamics - II Question with Solution | TestHub

(a) Δ E = q + w holds only for a closed system, not an open one: incorrect. (b) A process also needs the path (e.g. reversible or irreversible), not just end states: incorrect. (c) Work can still be exchanged, so the system need not be isolated: incorrect. (d) After an irreversible cycle the system is restored but the surroundings are not (heat converted, entropy of surroundings increased): incorrect. All four are incorrect. Ans: (a), (b), (c), (d).