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Suppose that 100 L/min are drawn from a fermentation tank and passed through anextraction tank in which the fermentation product (in the aqueous phase) is mixedwith an organic solvent, and then the aqueous phase is separated from the organic phase. The concentration of the desired enzyme ( 3-hydroxybutyrate dehydrogenase )in the aqueous feed to the extraction tank is 10.2 g/L. The pure organic extraction solvent runs into the extraction tank at the rate of 9.5 L/min. If the ratio of the enzyme in the exit product stream (the organic phase) from the extraction tank to the concentration of the enzyme in the exit waste stream ( the aqueous phase )from the tank is D= 18.5( g/L organic)/(g/L aqueous), what is the fraction recovery of the enzyme and the amount recovered per min? Assume negligible miscibility between the aqueous and organic liquids in each other, and ignore any change in density on removal or addition of the enzyme to either stream.
tom and jim are kicking a ball which has a mass of 490g back and forth. tom kicks the ball with a speed of 5ms
Ten moles of ethylene (T_c=9.2 degrees C, P_c= 214.2kg/m^3) are to be compressed isothermally from their initial state (P = 21.7 bar,T = 25 ºC, and V = 1000 cm3/mol) to 100 cm3/mol. Estimate the work required to perform this operation on an ideal gas..
100 lbm of water at 500 psi occupies 1.6 ft3. it undergoes a constant pressure process until the temperature is 600
the area of a rectangle with a perimeter of 200 cm is modeled by a function a 100l - l2 where l is the length of the
Calculate the force constant for the bond.
Air undergoes a poly tropic process in a piston-cylinder assembly from P1 = 1 atm, T1 = 70ºF to P2 = 3 atm. Employing the ideal gas model with constant specific heats at 80ºF, determine the work and heat transfer per unit mass, in Btu/lbm, if
The lighting requirements of an industrial facility are being met by 700 40-W standard fluorescent lamps. The lamps are close to completing their service life and are to be replaced by their 34-W high-efficiency counterparts that operate on the exist..
a tank contains 0.9 m3 of helium at 200 kpa and 20 c. estimate the total mass of this gas in kga on earth andb on the
solid carbon reacts with steam to produce carbon monoxide and hydrogen. given an hc atom ratio of 11 and an oc atom
A gas turbine receives a mixture having the following molar analysis: 10% CO2, 19% H2O, 71% N2 at 720 K, 0.35 MPa and a volumetric flow rate of 3.2 m3 /s. The mixture exits the turbine at 380 K, 0.11 MPa. For adiabatic operation with negligible kinet..
A high-speed elevator is being designed that must be able to travel at a maximum speed of 11.5 fts. You are asked to recommend the lift motor to use. The completely furnished carriage will have a mass of 3500 pounds. The design occupancy limit will b..
A collar (A) that slides along a smooth horizontal bar. The mass of the collar is 14 kg, and the mass of block (B) is 18 kg. The spring constant for the spring connecting the collar to the frame is 700 N/m.
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