Calculate the entropy of steam at 60 psia with percentage moisture of 0.40. Properties of steam at 60 psia: sf = 0.4274 BTU/lb.R and sfg = 1.2172 BTU/ Ib.R * ww

A Stirling engine: (1) isothermal heat addition → (2) isochoric heat removal → (3) isothermal heat removal → (4) isochoric heat addition; uses one mole ideal rigid diatomic gas and operates between a hot and a cold reservoir at temperatures TH 600 K and To = 300 K, and a volume of V₁ = 1 L and V/₂ : = 4 L. Calculate the heat removal/addition in part (4) of the cycle. Select one: a. Q b. Q O c. Q O d. Q = = = = -6236 J 6916 J Q=-3458 J 6236 J

Steam (H2O) enters a turbine at 35 m/s and specific enthalpy of 3500 kJ/kg. Thesteam leaves the turbine as a mixture of vapor and liquid having a velocity of 60m/s and a specific enthalpy of 2400 kJ/kg. If the flow through the turbine is steady,adiabatic, and changes in elevation are negligible, calculate the work output per unitmass (kJ/kg) for the turbine.

For air properties use online source: https://www.peacesoftware.de/einigewerte/luft_e.html  The compressor is operating at steady-state increasing pressure of R-22 refrigerant from 4 bars to 14 bars. Temperature was rising during the process from 12C to 90C. The inlet volumetric flow rate is 1 m3/min and inlet diameter is 0.03m. At the exit the diameter is the same. Heat flow to the surroundings can be neglected. Determine: a.Mass flow rate [kg/s]   SHOW AND EXPLAIN ALL STEPS PLEASE thanks