This document appears to be a question paper for an engineering thermodynamics exam consisting of multiple choice and numerical problems. It covers topics like thermodynamic equilibrium, Carnot cycle efficiency, ideal gas properties, vaporization enthalpy, adiabatic saturation temperature, gas turbine cycle analysis, heat pumps, refrigeration, steam power cycles, psychrometrics, and Maxwell relations. The problems involve calculations related to compression, expansion, heat transfer, work, efficiency, and using properties from thermodynamic tables and charts.