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Water flows smoothly over a small bump in a channel of constant width, as shown in Figure P10.11. At any cross-section the velocity may be considered constant over the entire area. If V1 is the velocity at entry, where the depth is Y1, and V2 is the velocity where the bump has its highest point, where the depth is Y2. If Y1/Y2 = 1.8, find
(a) The Froude number of the flow at entry.
(b) The Froude number at the top of the bump.
Explain how bacteria are intimately involved in the generation of acidic mine waters
The activation energy of a certain reaction is 36.2kJ/mol. At 24 ?C , the rate constant is 0.0160s?1. At what temperature in degrees Celsius would this reaction go twice as fast
The normal boiling point of ethanol is 78.4 C, and the heat of vaporization is Delta H vap = 38.6 kJ / mol.
High-purity benzoic acid (C6H5COOH; change H (rxn) for combustion = -3227 kj/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter
Determine the number of signals expected in the carbon 13 spectra for each of the following compounds. propyl benzene and 1,2,4 trimethyl benzene
Depict the skeletal structure for the major organic product formed when 1-butyne reacts with 1 equivalent of HBr.
In the lab with chromic acid it is sometimes complicated to control the products from the oxidation of a primary alcohol. Explain why can an enzyme produce only an aldehyde while chromic acid can produce more than one product
The formation of SO3 from SO2 andO2 is an intermediate step in the manufacture of sulfuric acid, and it is also responsible for the acid raid phenomenon. The equilibrium constant (Kp) for the reaction is0.13 at 830οC.
A bicycle tire is filled with air to a pressure of 75 psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire
Methyl salicylate (ester) can be prepared from salicyclic acid and methanol via Fischer Esterfication. Which one of these reagents would you use in excess in order to drive the rxn to product. Explain how you would isolate the ester from the react..
For the reaction N2O4(g) (equilibrium arrows) 2NO2(g), kp = 0.25 at a certain temperature. Calculate the equilibrium pressures of NO2(g) and N2SO4(g) if the initial pressures of the components when placed in an otherwise empty container are as f..
Prepare a model of 3-penten-2-one. Are stererisomers possible here. Explain. Are any of these chiral. This system is said to be conjugated. Why.
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