My textbooks will definitely help you understand thermodynamics, the laws of thermodynamics, provide the equations you need. In the introductory text, you will find many illustrative examples.  In the advanced text (2 volume texbook), you will find numerous problems with their solutions.   

“Dr. Infelta has prepared a compact Introductory Thermodynamics book which will serve well for mature students who need a command of this important field.  Undergraduate students will find the presentation logical, the examples thoughtful, and the coverage thorough.  Students and professionals for whom memory or mastery of previous thermodynamics courses have dimmed, will find, in addition to the above virtues, careful derivation of the properties of non-ideal systems and emphasis on when to use these results instead of ideal system results, treatment of multireaction equilibria, and (a personal favorite) a succinct elucidation of that odd proposition of thermodynamics, Le Châtelier's Principle.  These students will value this small volume packed with the power of classical thermodynamics."
Lynn Melton, Professor of Chemistry,
University of Texas, Dallas.