Chemical Process Principle Help with this question. Need the solution ASAP..Thnkyou so much

Question 3 (20 Marks) (a) Hot air enters at 197C and 20 cm H2O to a spray dryer chamber (inner diameter = 4 m and height = 6 m) and liquid containing dissolved solids injected into the dryer through spray nozzle to produce detergent powder. The liquid fed to the dryer contains 70% water by mass, which completely evaporates. The dryer outlet gas contains 12 mole% water and exit the chamber at 83C and 3 psig at a rate of 311 m/min. i) Draw a flow diagram and do a degree of freedom analysis for this problem. (3 marks) ii) Calculate the production rate of dried detergent and volumetric flow rate of the inlet air. (5 marks) iii) Calculate the upward velocity of air at the bottom of the dryer. (2 marks) iv) Calculate the specific molar volume of inlet air. (2 marks) v) Calculate the volumetric flow of the inlet air using conversion from standard conditions. (4 marks) Data: Rg = 0.7302 ft.atm/(Ib-mole.R) = 0.08206 L.atm/(mol.K) = 10.73 ft .psia/(Ib- mole.R) = 8.314 m'.Pa/(mol.K); 1 m = 1000L; 1 atm=10.333 m H20 at 4 C = 760 mm Hg (torr) = 14.7 psi (b) A gas stream contains 25.0 mole% n-heptane (n-C,H16) and the remainder nitrogen. The stream flows through a pipe at 100C and 2.00 atm (gauge) pressure. At what temperature (C) would it have to be cooled at constant pressure in order to begin condensing n-C7H16? Provide comment on your results obtained. Data: Antoine equation constants for n-CH16 : A = 6.90253; B = 1267.828; C = 216.823 (4 marks)