a) A piston-cylinder device contains a working fluid which undergoes an irreversible and non-adiabatic process. Will the following entropy of the fluid increase or decrease? i) Entropy changes of a system, AS Entropy generation, Sgen Briefly explain your answer. OUTM OUTM

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8. A piston-cylinder arrangement contains 1 kg mass at 142.5 kPa. The volume is increasedfrom 1 m3to 3 m3. The approximate boundary work of the system isa. Cannot be find since some data is missingb. 285 kJc. 0 kJd. 0.285 kJ

In a closed system contains R-134a and it undergoes an isothermal process from state 1 to state 2. The initial tempetature and pressure of R-134a are 320 kPa and 400C respectively. The final quality of R-134a is 50 percent. Find the specific work and heat transfer during the isothermal process. a) W = -27.65KJ/kg and q = -130.075 KJ/kg b) W = -47.65KJ/kg and q = -13.075 KJ/kg c) W = -47.65KJ/kg and q = -130.075 KJ/kg d) W = -147.65KJ/kg and q = -10.075 KJ/kg      do it fast so that, I can rate you..