B) process stream of methane flowing at 0.55 kg/s is compressed adiabatically by a steady-flow compressor from 2.0 MPa and -10C to 10.0 MPa and 110C. Use the applicable generalized departure chart and calculate: The required power input (in kW) to the compressor ii) i) [8 marks] [7 marks] The change in entropy (in kW) of methane Is it correct to use departure functions for your answers to Q4 B (i) and (ii) above (Yes/No)? Why? (Data: Methane properties. Cv = 1.7354 kJ/kg K; Cp = 2.2537 kJ/kg K; Tc = 191.1K; Pc = 46.4 bars] [3 marks]