A3-stage compressor compresses air from 140 kn/m2 to 4000 kn/m2 at 10°c. determine the ideal intermediate pressures, the work required per gram of gas and the isothermal efficiency of the process if the specific volume of air at the inlet is 0.579 m/kg. assume the adiabatic compression and intercooling of air to the initial temperature

Consider a 1.2 meter high and 2 meter wide glass window whose thickness is 6 mm and thermal conductivity is 0.78 w/m °c. the room temperature is maintained at 24 °c, while the outdoor temperature is -5 °c. the convective heat transfer coefficients on the inner and outer surfaces of the window are 10 w/m2 °c and 25 w/m2 °c respectively. (a) draw the thermal resistance network, etermine the steady rate of heat transfer t e glass window (c) determine the temperature of the inner surface of the window