A mixture containing 60 wt% of acetone and 40 wt% of water is to be separated using a distillation column. The flow rate of the bottom product stream is 42 kg/h which equivalent to 30% of the mixture inlet flow rate. While, for the overhead stream contains 20 wt% water.

In a liquid formulation process, several ingredients are mixed into purified water. The mixing action creates an exothermic of 40,000 Btu/hr. Assume the heat capacity of the solution is approximate of water. The chill water applied to the jacket of the compounding tank enters at 42 deg F and exits at 50 deg F. The chill water GPM is

3

An air pipe carries cool air at an inlet bulk temperature of 15C and a velocity of 12 m/s. The pipe is made of carbon steel of 0.25 m diameter, it is not insulated, and it( the pipe) will be maintained at temperature of 120C in order to raise the flowing air temperature to 45C. Calculate the Reynolds number, the heat transfer coefficient in W/(m^2K) and the lenght of this pipe in meters. Use Table A.4 to read the air properties.