Refrigerant-134a at 140 kPa and -10C is compressed by an adiabatic 1.3-kW compressor to an exit state

Question:

Refrigerant-134a at 140 kPa and -10°C is compressed by an adiabatic 1.3-kW compressor to an exit state of 700 kPa and 60°C. Neglecting the changes in kinetic and potential energies, determine
(a) The isentropic efficiency of the compressor,
(b) The volume flow rate of the refrigerant at the compressor inlet, in L/min, and
(c) The maximum volume flow rate at the inlet conditions that this adiabatic 1.3-kW compressor can handle without violating the second law.