Please solve by hand with explanation

Hydrogen at a temperature of 20C and an absolute pressure of 1380kPa enters a compressor where the absolute pressure is increased to 4140kPa. If the mechanical efficiency of the compressor is 55 percent on the basis of an isothermal and reversible operation, calculate the pounds of hydrogen that can be handled per minute when the power supplied to the pump is 224 kW. Kinetic-energy effects can be neglected