Chapter 7, Problem 7.75P

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A 400-L tank, A contains argon gas at 250 kPa, 30°C. Cylinder B, having a frictionless piston of such mass that a pressure of 150 kPa will float it, is initially empty. The valve is opened and argon flows into B and eventually reaches a uniform state of 150 kPa, 30°C throughout. What is the work done by the argon?

Air at 1000 Co, 1.0 MPa expands in a polytropic process with n = 1.3 to a pressure of 250   kPa. Find         1- the final temperature         2- the specific work output

Entropy and ideal steady devices 1. H2O flows through a reversible adiabatic turbine. The inlet condition is 1000 F and 400 psia. The outlet condition is 10 psia. The turbine produces 100 hp. Neglecting kinetic and potential energy a. Draw the process curve on a T-s diagram. Show the saturation dome and label the inlet and exit states b. Find the enthalpy and entropy at the inlet c. Find the enthalpy at the exit d. Compute the mass flow rate e. Compute the rate of entropy generation

· A closed gaseous system undergoes a reversible process with constant pressure of 200kpa. 2500 kJ of heat is rejected, and the volume changes from 5m3 to 2m3. Find the change in internal energy

An 8 kW compressor blows the air at 22 C and 100 kPa to 1600 kPa. reversibly to the pressure (P v n = constant). In addition, heat transfer to the surrounding environment at 22 °C. is happening. (n = 1.33) a) Find the compressor work expression (integrating) according to the Pvn interchange and the result is n, R, T1, Express it in terms of P1, P2. b) Find the mass flow and outlet temperature of the air. c) Find the total irreversibility by applying the exergy balance. d) Find the isentropic efficiency of the compressor (k=1.4). e) In case of using two compressors with intercooler, the intermediate pressure (Px) is in terms of P1 and P2. take the derivative and find the total compressor power in this case and add it to a single compressor. Determine your gain in kW according to

You have an adiabatic steam turbine. The steam enters a 0.1m diameter pipe at 200 m/s and it at state conditions of 773K and specific volume of 0.0482 m?/kg. When it exits the turbine as a saturated mixture at 393K its specific volume is 0.665 m²/kg. Using the first law for control volumes, find the work output of the turbine. You can neglect the change in KE and PE.

Calculate the workdone, heat transfer and change in entropy.  Do not need to solve.  I just need the  steps to solve it e.g equations etc.

Please don't provide handwritten solution ....