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The contents of a tank are to be mixed with a turbine impeller that has six flat blades. The diameter of the impeller is 3 m and the impeller is installed 1,35 m abobe the bottom of the 2o ft tank. If the temperature is 30 C and the impeller is rotated at 30 r/min, what will be the power consumption ? Find the Reynolds number.
adsorption and membrane processeszeolites are used to adsorb a wide range of solutes from vapour and gas streams. what
Suppose that you start with 103 g of a pure radioactive substance and 2 h later determine that only 0:25 103 g of the substance remains. What is the half-life of this substance?
chalf its rated kVA at 0.85 power factor lagging.
Since the temperature in the summer can get as high as 95°F, determine the pressure that the tank must withstand to avoid rupture.
A charge variation with time is given in Figure P1.1.8. Draw the corresponding current variation with time.
What is the minimum pressure that we must have at the exit of the compressor in order to achieve liquefaction?
Calculate the ?S for the transfer of one mole of octane to water using the change in multiplicities assumed for the first shell of water molecules surrounding the molecules.
The binding of the hydrophobic amino acid tryptophan to a protein shows a pronounced hydrophobic effect. The thermodynamic data for the binding of is given below calculate ?
Forty-five kilograms of a solution containing 30 wt% ethylene glycol in water is to be extracted with furfural. Using Figures 4.14a and 4.14c, calculate:
Develop a set of performance specifications for an electromechanical device to raise and lower the lower leg of a wheelchair user (to prevent edema).
Calculate the tap pings k on a three-phase autotransformer to limit the starting current to 4 times the full load current. For such a limitation, determine the ratio of starting torque to full-load torque.
A spherical ball of benzoic acid (diameter = 1.5 cm) is submerged in a pool of still water. The solubility and diffusivity of benzoic acid in water are 0.03 kmol/m3 and 1.25 x 10-9 m2/srespectively.
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