The document contains a mid-term test for a thermodynamics course with three multi-part questions. Question 1 involves determining the temperature and amount of condensed refrigerant for a pressure change process. Question 2 involves calculating the change in kinetic energy, power output, and inlet area of an adiabatic steam turbine. Question 3 involves discussing the first Carnot principle and determining the temperature of a heat source and the efficiency of a Carnot heat engine.