Thermodynamics MCQ Set 1 1. Which of the following is true? a) for an isolated system, dS>=0 b) for a reversible process, dS=0 c) for an irreversible process, dS>0 d) all of the mentioned AnswerAnswer: d [Reason:] For an isolated system which does not undergo any energy interaction with the surroundings, dQ=0 and also dS>=dQ/T….