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A blowdown wind tunnel exits to atmospheric pressure. In the working section where the cross-sectional area is 0.04 m2 , the flow has a Mach number of 3 and a pressure of 0.3 × 105 P a.
(a) What is the minimum stagnation pressure required?
(b) What is the minimum stagnation temperature required to avoid air condensation in the working section (the condensation temperature under these conditions is about 70°K)?
(c) What is the corresponding stagnation density under these conditions?
(d) What is the mass flow rate under these conditions?
Find the Qsp if The solubility product of Ag 2 CO 3 =6.2 × 10-12. Also determine whether a precipitate forms in the solution (Assume 20 dropsper milliliter.)
A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 1.56 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Enter in Volt..
Silver sulfide is the tarnish that forms over time on polished silver. If a saturated aqueous solution of it at a certain temperature has a [Ag+] = 4 x 10^-17, what is the solubility product of silver sulfide at this temperature
A solution containing 0.0837 M caffeine and 0.0666 M niacin as the internal standard gave R = 423 and R = 347. To analyze a caffeine tablet, 20.0 mL caff niacin 0.146 M niacin and 20.0 mL of caffeine tablet solution were mixed
A solution may contain the following ions Ag+, Cu2+, Cd2+, Mn2+, Ni2+, and Na=. A white precipitate formed when 0.10 M NaCl was added and after this was removed the solution was treated with H2S gas under acidic conditions and no precipitate forme..
The mass of substance B is twice the mass of substance A, but the specific heat capacity of substance A is four times the specific heat capacity of substance B.
the compound zni4 is best described as anions in a face-centered cubic unit cell with the cations in the tetrahedral
an airplane is pressured to 650 mm Hg, which is the atmospheric pressure at a ski resort at 1.30 * 10^4 ft altitude. If air is 21% oxygen,
A gas cylinder contains 370 grams of O2 gas at 30atm and 25C. Explain what mass of O2 gas would excape if first the cylinder were heated to 75C as well as then the valve were held open until the gas pressure was 1atm, the temperature being maintai..
In a separate experiment, the molar mass is found to be 118.1 g/mol. Determine the empirical formula and the molecular formula of the organic compound.
You are asked to prepare a 0.8500 M solution of aluminum nitrate. You find that you only have 50.00 g of the solid. What is the maximum volume of solution that you can prepare
A solution is prepared by dissolving 13.3 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.50 mL sample of this stock solution
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