1 kg of a fluid expands reversibly according to a linear law from 4.2 bar to 1.4 ban the initial and final volumes are 0.004 m and 0.02 m. The fluid is then coole reversibly at constant pressure, and finally compressed reversibly according to a lar pv = constant back to the initial conditions of 4.2 bar and 0.004 m. Calculate th work done in each process and the net work of the cycle. Sketch the cycle on a p- diagram

A rigid container contains saturated vapour at 1.6 bar.  The container is cooled by -440 KJ and the pressure drops to 1 bar.  Calculate the mass of water in the container in kg.  Neglect kinetic and potential energy changes. Note that the reported heat transfer is negative because energy is leaving the container. It is closed system As the container is rigid, the volume and total mass will stay the same between the initial and final state.  This means that the specific volume of water will stay constant.  Use the information in the bullet above to fine the quality of the mixture at the final state. Then, use the quality to perform the energy balance.

This fixed-mass system undergoes an isothermal, quasi-equilibrium process from state 1 to state 2. The initial volume is 1 m^3. The mass inside the system is an unspecified ideal gas. Initial Pressure starts at 1000 kPa and the final pressure goes to 100 kPa. Find the change in specific internal energy the work done on the system and the heat transfer in KJoules.

200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at 5bar as saturated steam through a 5cm ID pipe neglect the change in potential energy of the system. What is the temperature of the outlet saturated system? How much energy is transferred to or from the turbine?