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A 100-liter fed-batch fermenter was successfully operated for 200 h using an aeration rate of 14 l/s and a 5 W agitator. It is proposed to scale the fermentation up to 10,000 liters. What agitator power consumption is required?.
Another closed tank contains steam with 99.9 % moisture at 3 bar. Heat is added until one of the two phases disappears. Which phase disappears and what is the final pressure and temperature?
Given the reaction 2N0, + - 0, = N205, what is the relation between2the rates of formation and disappearance of the three reaction components?
Suppose that both diodes have Rf = 10 Ω and Von = 0.5 V. Find the revised values of the resistors and voltage sources (v1 and v2) in order to accomplish the same objective.
Explain the action of a pn-junction with bias. Consider both the forward bias and the reverse bias, and use sketches wherever possible.
Calculate the standard enthalpy of combustion per gram of liquid methanol and compare this answer to that for ethanol in Exercise 75.
is to be separated in a reversible continuous flow isothermal, isobaric separator into pure acetone and an aeotrope that forms at 39.250C under atmospheric pressure. The azeotrope contains 61mole % CS2.
Estimate the fugacity of cyclopentane at 110 C and 275 bar. At 110 C the vapor pressure of cyclopentane is 5.267 bar. [10.8bar]
Calculate the resistance of the armature circuit and the field circuit.
In Addition, Iodine-131 is used in the diagnosis and treatment of thyroid disease and has a half-life of 8.1 days. If a patient with thyroid disease consumes a sample of Na131I containing 10 of 131I, how long will it take for the amount of 131I to..
A 1-liter container of nitrogen gas (N2) at a temperature of 23c is intially at a pressure of 1.25 atm. because of a slow leak the pressure falls to 1.15 atm 1 hour later what is the leak rate in molecules/second?
A typical product stream is 52.26% ethylene, 5.49% ethanol, 0.16% ether, 36.81% water, and 5.28% inserts. Calculate the selectivity of ethylene for ethanol and for ether.
The blower-motor combination used at the gas inlet has an overall efficiency of 50 percent. Estimate the power cost per 8000 operating hours for forcing the air through the packing if the cost of power is $0.08 per kilowatt hour.
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