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One thousand liters of a 95 wt% glycerol-5% water solution is to be diluted to 60% glycerol by adding a 35% solution pumped from a large storage tank through a 5-cm ID pipe at a steady rate. The pipe discharges at a point 23 m higher than the liquid surface in the storage tank. The operation is carried out isothermally and takes 13 mm to complete. The friction loss (P of Equation 7.7-2) is 50 J/kg. Calculate the final solution volume and the shaft work in kW that the pump must deliver, assuming that the surface of the stored solution and the pipe outlet are both at 1 atm. Data. PH2O = 1.00 kg/L, Pgly = 1.26 kg/L. (Use to estimate solution densities.)
Draw T-S diagram of the cycle.
Experimental tests have been carried out on this equipment, and the results for the slurry mixture used can be expressed as follows for any one pressure drop:
Find the density of liquid methane in a handbook and compare your answer to the tabulated value.
Determine the electromagnetic power developed by the armature under these conditions, in watts and in horsepower.
Then the monkey on the right begins to climb the rope while the monkey on the left simply holds on. When the right monkey has raised himself through height h(relative to the floor), what has been the change in the position of the left monkey?
Describe how you would find the critical temperature for thermal damage. Do you expect that to be lower or higher than a constant temperature case of the same exposure duration?
A distillation column separates benzene from toluene using a control scheme similar to that shown in Figure (a). Make a practice HAZOP study of the plant section and add any instrumentation that is needed to develop the full P and I diagram.
Under the mannich reaction, after the initial amine-formaldehyde reaction, could xylene act as a substrate to stabilize the reaction if the reaction does not stabilize during or prior to dehydration and clearing? In synthetic chemistry, amine-form..
Determine the ratio between the cross-sectional areas of two blood vessels, assuming that the voltage ratio induced in identical magnetic flow probes is equal to 2:3 and the ratio of blood flows through these vessels is 1:5.
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?
Determine a numerical value for the acentric factor w implied by the RedlicWKwong equation.
Devise a control system for the distillation column described in Chapter 17, Example 17.2. The flow to the column comes from a storage tank. The product, acetone, is sent to storage and the waste to an effluent pond. It is essential that the speci..
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