At a sampling point in the duct the temperature is 40 degree C the pressure is 850 mm Hg, and the dew point of the sampled gas is 25 degree C. A mixture of n-hexane vapor and air leaves a solvent recovery unit and flows through a 70-cm diameter duct at a velocity of 3.00m/s. The gas is fed to a condenser in which it is cooled at a constant pressure, condensing 60% of the hexane in the feed.
a. Execute a degree-of-freedom analysis to illustrate that enough information is available to determine the required condenser outlet temperature in the degree C and cooling rate in (kW).
b. Execute the calculations for the equations.
c. Determine what would the gas velocity be if the feed duct diameter were 35 cm for the same molar flow rate of the feed gas?