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Ac measurements with constant voltage amplitude reveal that the total core loss of a certain magnetic circuit is 10 W at f = 50 Hz, and 13 W at f = 60 Hz. Find the total core loss if the frequency is increased to 400 Hz.
Calculate the concentrations of the stock solution and solutions A, B, and C.
The product is neutralized and washed with water to remove salts. The washed product is usually separated by batch distillation, in which unreacted feeds are recovered first, followed by product, and a polymeric waste is left as residue. The batch..
Compute the efficiency at one-half load, assuming that the stray-loss and rotational losses do not change with load.
Figure shows a simple heat-exchange system. A feed stream is heated by heat exchange in a plate exchanger and then further heated in a steam heater before entering a fixed-bed reactor. The product from the reactor is cooled in the plate exchanger ..
The gas density is 0.075 lb/ft3. The liquid density is 55 lb/ft3. The viscosity of the oil is 20 centipoises. Under these conditions, estimate the necessary tower diameter and the pressure drop through the tower as inches of water per foot of pack..
Large blooms of algae result from high nutrient loading in rivers and lakes, for example, as a result of runoff of fertilizers from agricultural fields.
the rate of flow to an ammonia synthesis reactor contains 25 mole ltbrgtnitrogen and the balance hydrogen. the flow
upon responding to a 200 a.m. domestic transportation mishap your hazmat team determines that a liquefied compressed
A shell and tube heat exchanger is to be used in a corrosive service. If carbon steel tubes are used, the cost of the exchanger is estimated to be $160,000, and it is expected that the exchanger will need to be replaced after two years.
Calculate the output torque if the rotational loss at this slip is 400 W.
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.
The reactor initially contains one mole of ethanol and nothing else. The reaction is run at 550 °C and 2 bar until equilibrium is reached. What is the mole fraction of species at equilibrium?
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