Thermodynamics, 5th Edition

• 1.10.1. A strictly logical presentation of the subject matter would have required me to terminate the derivations in the middle of each subsection (Eqs. (1.10.3e), (1.10.4d) and (1.10.5d)), until the material of Section 1.12 was presented, and then resuming the remaining material in the present section. It seemed pedagogically more attractive to preserve the continuity of the present exposition by citing material that will be proved in Section 1.12. You should convince yourself that this does not involve circular reasoning but a mere rearrangement of independent derivations.
• 1.10.2. This condition is actually too restrictive. We need merely demand that any change in volume of the system be exactly matched by a corresponding compensating change ...