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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 )
Draw a diagram of a simple gene finding HMM that might be useful for prokaryotes. The HMM should contain hidden states for exons and intergenic regions, and it should guarantee that exons have lengths that are multiples of three.
Formulate a continuous component model for xylene isomerisation. (Xylene is known to have three distinct isomers: ortho-, meta- and paraxylene and the transition between them is usually described by the triangle reaction, cf. Aly eta/. (1965).)
If 2.00 MNaOH is available, how would the student prepare the solution? To help insure three significant figures in the NaOH molarity, to how many significant figures should the volumes and mass be determined?
Write a differential mole balance on phosphoric acid and provide an initial condition. [Start by defining np (k mol) to be the total quantity of phosphoric acid in the tank at any time.]
Assuming adiabatic operation, at what rate is water supplied to the mixer? What is SG for the process? What is the irreversible feature of the process?
In a wood chemistry/wood physics lab, we were asked to place a piece of wood that contained approx. 64% moisture content in a hydraulic press where we applied a constant 400 psi pressure and applied a constant 400 degrees F of heat. We inserted a ..
determine the maximum value of the voltage induced in the coil.
Neglecting stator resistance and rotational losses, and assuming constant rotor resistance, determine the slip at maximum torque and the slip at full load.
how the interconnections and appropriate polarity markings.
Product X takes 1 machine hour per unit and Product Y takes 5 machine hours per unit. Which of the following is one of the constraints for this linear program?
Consider the following statements: "Heat is a form of energy, and energy is conserved. The heat lost by a system must be equal to the amount of heat gained by the surroundings.
Individual Assignment - 25% of grade. This SQM plan may be for a religious organization, a city, A&M-Commerce, a manufacturing or engineering organization, the organization for which you work, etc. This is an organization-wide (i.e., company-wide,..
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