A piston cylinder device contains .733 kg of refrigerant-134a at -10 degrees C. The piston that is free to move has a mass of 8.63 kg and a diameter of 21.2 cm. The local atmospheric pessure is 88 kPa. Now, heat is transferred to the refridgerant-134 until the temperature is 15 degrees C.
Determine:
a) The final pressure in kPa (round to 1 decimal place)
b) The change in volume of the cylinder in m^3 (round to four decimal places)
c) The change in enthalpy of the refridgerant-134a in kJ (round to 1 decimal place)
Please give clear answers.