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A droplet of water resting on a flat, semi-spherical surface evaporates through molecular diffusion through the inert air around it. The water droplet, but the initial flow has evaporated.
The temperature of the drop and its surroundings is kept constant. The air contains water vapor at an infinite distance from the droplet surface.
1. Select a coordinate system that best describes this diffusion process. List at least 5 reasonable hypotheses for the evaporation mass transfer process and general differential water simplification in terms of flow Na.
2. What is the fick water differential for the simplified form and the water differential (species A)
A stream that contains a methanol/ethanol mixture with 32% mol methanol is flashed to 100 °C to a pressure such that the molar rate of the vapor stream is 75% of the feed. Determine the temperature and the composition of the two phases.
Assuming that the two unsealed faces of the wood immediately jump to an equilibrium moisture content of 10 lb H20 per 100 lb of dry wood, determine the time for the moisture to penetrate to the center of the slab (2 in. from either face). Assume a..
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Calculate the value of Kc for the reaction Ag+(aq) + Cl-(aq) → AgCl(s) if the concentrations at equilibrium are [Ag+] = 10-8M, [Cl-] = 0.01M.
What is the confidence interval for probability levels of 0.95 and 0.99?
If this alternator is to generate 60-Hz voltages, find the new synchronous speed, and calculate the new terminal voltage for the same field current.
EG463 Process Design Assignment Help and Solution, Queensland University of Technology - Assessment Writing Service
(Note: The number of parallel paths is equal to the number of poles for lap windings, while it is equal to 2 for wave windings.)
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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]
Due to upstream process modifications, the reactor feed has now changed from pure propane into a mixture that contains 50% nitrogen (by mol). If the reactor pressure remains at 5 bar, how should you adjust the temperature to achieve 95% conversion..
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