Saturated steam enters an ideal (isentropic) compressor at a pressure of 100 kPa with a mixture fraction of 0.97 (state 1). It is compressed to 800 kPa (state 2). The process is sketched schematically in Figure Q2. The mass flow rate of steam is 150 kg/s. Use data in the steam tables enclosed with this paper and laws of thermodynamics to:

I. Calculate the enthalpy and entropy at the compressor inlet

II. Determine if state 2 falls within the saturation region, (Figure 2 (a)) or in the superheated region (figure 2 (b))

III. Calculate the enthalpy at the compressor exit (state 2). Interpolate values from the steam tables if required

IV.Simplify the steady flow equation derived from the first law of thermodynamics (Equation Q2) using suitable assumptions to calculate the work done by the compressor on the steam (explain the assumptions)

V. Explain the reason for the sign of the answer (negative or positive) for the work done by the compressor