thermo question step by step pls

You are required to liquify the refrigerant R422A through a throttling valve operates at 1 bar for transport. The refrigerant is initially stored at 20C and 1 bar. The stored fluid flows into the process at 100kg/s. The stored refrigerant is mixed with a recycle stream before being fed into an ideal compressor that increases the pressure to 3 bar. The compressor outlet acts as a feed to an isobaric heat exchanger that increases the fluid temperature to 40C. A second compressor operating at 50 bar, with an efficiency of 55%, follows the heat exchanger. A concurrent heat exchanger then reduces the temperature of the fluid to 50C at constant pressure, before being fed to a throttling valve. The mixture of liquid and vapor leaving the throttling valve is separated through a decanter, in which liquid leaves the process and the vapor is recycled to mix with the feed stream. Find the: a. work supplied to the second compressor b. temperature of the fluid leaving the second compressor c. liquid mass fraction leaving the throttling valve d. mass flow rate of liquid leaving the decanter