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Five different batches of a commercial plastic are sampled to determine the variation of inert additives between batches. Since each batch consists of several thousand pounds of material, several samples are taken from each batch to determine the variation in the batch. With the following information, determine whether or not the variability of the separate batches forms a homogeneous test. Use a 95 percent probability level in the statistical analysis.
Draw a schematic diagram for this control system. On your diagram, identify the controlled variables, manipulated variables, and disturbance variables. Be suit to include several possible sources of disturbances that can affect room temperature.
Determine the minimum number of stages required, and determine the minimum reflux ratio
The physical properties of the fluid are: density 875 kg/m3, viscosity 1.46 mN m-2 s. Also, determine the NPSH, at this flow rate, if the vapor pressure of the fluid at the pump suction is 25 kN/m2.
Use Laplace transformation to solve the initial value problem
An electron falls from the conduction band of silicon (Si) to the valence band. The band gap of Si is 1.1 eV. What is the wavelength of the photon emitted by this process? Give your answer in nm
a. Estimate the feed flow rates of glycine and guaiacol that would be needed to produce 100 kg/day of the API. b. Estimate how much product is lost in the thin-film evaporator.
Calculate the diffusion flux at 1027(C (1300 K) for the same concentration gradient and assuming an activation energy for diffusion of 125,000 J/mol.
What is the composition by mass percent of the original mixture? Explain in detail how you arrived at this answer, writing down every step to the solution.
Ethylene and propylene are valuable monomers. A key step in the recovery of these materials is fractionation of the olefin from the corresponding paraffin (ethane or propane). These fractionation steps require refrigeration of the overhead condens..
Problem Statement: Derive the equation for S* for competitive product inhibiton. Definition of variables:
Calculate the fraction of water that is condensed from the air, the relative humidity of the air at 100°C, and the ratio m3 outlet air at 100°C/m3 feed air at 90°C.
The azeotrope contains 61mole % CS2. Estimate the work of separation if the feed solution is liquid at 39.250C and the products are withdrawn at the same temperature. At 39.250C, 1 2 604 ; 400 . S S P mmHg P mmHg?
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