NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. An adiabatic pump is to be used to compress saturated liquid water at 10 kPa to a pressure of 15 MPa in a reversible manner. 15 MPa Pump Determine the work input using average specific volume and pressure values. (You must provide an answer before moving on to the next part.) The work input is kJ/kg.

pls answer the given correctly

! Required information Problem 08.048 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Piston Device with Refrigerant NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device initially contains 2 kg of refrigerant-134a at 100 kPa and 20°C. Heat is now transferred to the refrigerant from a source at 150°C, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 120 kPa. Heat transfer continues until the temperature reaches 80°C. Assume the surroundings to be at 25°C and 100 kPa. R-134a 100 kPa 20°C Q 150°C Problem 08.048.c - Exergy Destroyed by Piston Device with Refrigerant Determine the exergy destroyed. (You must provide an answer before moving on to the next part.) The exergy destroyed is kJ.

3. 0.5 kg of air with a pressure of 2 MPa and a temperature of 250 °C expands while satisfying the relationship of'PV^1.25=constant'. Find what has been done during this process as it expands until the temperature reaches 330 K.