This document contains a mechanical engineering exam with questions on thermodynamics. It includes: 1) Definitions of key thermodynamics concepts like internal energy, reversible processes, and equations of state. 2) Calculations involving processes like throttling, isentropic expansion, isothermal compression, and heat exchange. 3) Explanations of thermodynamic cycles like Rankine and concepts like entropy, Maxwell's relations, and the Joule-Thomson effect. 4) Diagrams including p-V, T-s, psychrometric charts and the depiction of phase changes and transitions on a p-T diagram. 5) Determination of properties for pure