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Determine the maximum amount of work obtainable in a flow process from 1 kg of steam at 3000 kPa and 723.15 K (450°C) for surrounding conditions of 300 K and 101.33 kPa.
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?.
A mixture of ethanol and benzene is separated in a network of distillation and membrane separation steps. In one intermediate step, a near-azeotropic liquid mixture of 8,000 kg/h of 23 wt% ethanol in benzene is fed to a pervaporation membrane cons..
Determine the Thévenin and Norton equivalent circuits as viewed by the load resistance R in the network of Figure P2.1.1.
1. How many kilograms of methane (CH4) are in perfectly insulated piston with the following properties: Volume = 2 cubic meters. Pressure = 3 bar absolute. Temperature = 50 Celcius? The ideal gas law constant R = 0.00008314 cubic meters.bar/K/gmol. A..
The resting potential of the membrane is 52 mV at room temperature. Find the Kþ cytoplasm concentration.
The vessel is 4 m internal diameter and 20 m long. Estimate the minimum wall thickness required to resist this pressure, for the cylindrical section and the heads. Take the design pressure as 12 bar and the maximum allowable stress for the materia..
If sodium ions are injected into the system for two seconds in the form of a brief pulse approximated by the following equation, x(t) = 3u(t) 3u(t = 2), how would the cell respond to (e.g., pump out ions) such input? Find the answer using time-do..
A third-order Butterworth low-pass filter is shown in the following circuit with an ideal operational amplifier. Find the magnitude of the output
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.
A fluid undergoes the Carnot cycle in Figure 4-5 with TL = 300 °C, TH = 500 °C. Calculate the amounts of heat and work for each step, as well as the thermodynamic efficiency of the cycle (net amount of work produced over amount of heat absorbe..
The reaction appears to be carried out under conditions that maximize both selectivity and conversion (long time at low temperature), as might be expected given the cost of the raw material. If the conversion is 99.9% and the selectivity for the d..
Isophthalic acid (IPA, formula HOOC-C6H4-COOH) is made by oxidation of m-xylene with air. The reaction is carried out in acetic acid solvent at about 200 °C using a cobalt-manganese catalyst promoted by bromine.
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