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A 5% solution of a reagent is required in the process of synthesis of a pharmaceutical intermediate. The solid reagent, available as crystals (density = 1580 kg/m3 ) of average particle size 0.75 mm, is dissolved in a stirred vessel to prepare 1.2 m3 solution in a batch. The requisite volume of water and the calculated quantity of solid are charged into a 1.15 m diameter tank fitted with a 0.6 m diameter impeller. Given: agitator rpm = 120; diffusivity of the solute = 1.5?10?5 cm 2 /s; average viscosity of the solution = 0.98 cP; solubility of the solid in water = 7.6 g per hundred gram water. Calculate the time required for the dissolution of the solid. The Sherwood number correlation in Example 3.4 (B. K. Dutta) can be used. (Solution density = 1000 kg/m3 )
Calculate the blood volume of the animal and give a detailed explanation of how you arrived at your answer.
If the gases leave the tower at 6 atm, 25 °C, and are expanded to, say, 1.5 atm, calculate the turbine exit gas temperatures without preheat, and if the gases are preheated to 400 °C with the reactor off-gas. Also, estimate the power recovered fro..
A hydrocarbon liquid fuel (containing only C and H2) is burnt in air which produces a flue gas which analyses ( orsat analysis ) on dry basis as CO2 =10.5% , O2 = 5% and N2 =84.5%.
Discuss the characteristics of this microenvironment.
Is this a reasonable value from a physiologic point of view? Would the patient be considered normal or diabetic?
A table for the direct 3-bit binary decoding is given. Show a block diagram for a 3-to-8 decoder and suggest a method for its implementation.
A 0.1025-g sample of copper metal is dissolved in 35 mL of concentrated HNO3 to form Cu2 ions and then water is added to make a total volume of 200.0 mL
the paint formerly used on some storage tanks contained aluminum powder which reflected heat from the surface of the
HEAT TRANSFER PROBLEMS NO16- Water flowing in a steel pipe of diameter 0.02 m is to be cooled from 40 to 30 oc . The velocity of water in the steel pipe is 1.5 m/s .
Ten kmol per hour of air is throttled from upstream conditions of 298.15 K (25°C) and 10 bar to a downstream pressure of 1.2 bar. Assume air to be an ideal gas with Cp = (7/2)R.
Suppose a capacitor is inserted into the circuit instead of any of the resistors and the current is switched on. Draw a closed contour for which the total net current is not necessarily zero.
a. Develop a general equation that relates the average value of n to the mass of a given mixture of PCBs and the mass of AgCl produced. b. A 0.1947-g sample of a commercial PCB yielded 0.4791 g of AgCl. What is the average value of n for this samp..
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