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A large reservoir maintains air at 6.8×105 P a and 15°C. The air flows isentropically through a convergent and divergent nozzle to another large reservoir where the back pressure can be varied. The area of the throat is 25 cm2 and the area of the nozzle exit is 100 cm2 . Find
(a) The maximum mass flow rate through the nozzle.
(b) The two values of the Mach number at the nozzle exit corresponding to this mass flow rate.
(c) The back pressures required to produce these Mach numbers.
Which of the following correctly describes the equalibrium constant for the gas phase reaction between H2 and O2 to form gaseous H2O? a.) Kc = [H2O]/[H2][O2] b.)Kc = [H2O]^2/[H2][O2] c.) Kc = [H2O]^2/[H2]^2[O2] d.) Kc = [H2][O2]/[H2O] e.) Kc = [H2..
The FDA recommends that women who are pregnant avoid eating more than three 6.00-oz servings of bluefish per month because of the relatively high mercury levels in that type of fish.
Delivered mechanical power is 98.8kW. Temperature as well as velocity are T1= 300K, T2= 520K, U1= 10m/s and U2=3.5m/s. Approximate the rate of heat transfer from compressor. Presume air that Cp=7/2R as well as that enthalpy is independence of pres..
Synthesize the following carboxylic acid, using the compunds provided as the only sources of carbons, along with any organic/inorganic reagents necessary:
All living things contain carbon. Most of this carbon is stable carbon-12. Nevertheless, a small percentage will be carbon-14, a radioactive isotope of carbon that decays with time. As living things eat and breathe, carbon is constantly recycled a..
Problem- What is the molar mass of a material that has a mass of 0.155 g, and in a 250mL aqueous solution, has an osmotic pressure of 35.0 torr at 25oC
an automobile gasoline tank holds 47 kg of gasoline. when the gasoline burns 165 kg of oxygen are consumed and carbon
Describe one or more simple chemical tests that would distinguish acetaminophen from ibuprofen.
a solution of water kf1.86nbspand glucose freezes atnbspnbsp1.75c. what is the molal concentration of glucose in this
The student carefully washed the burette and rinsed it deionized water, but neglected to coat the sides of the burette with the NaOH solution before filling it for the titration. The titration required 25.24 mL of the NaOH solution. The true conce..
Explain the hydrate of sodium carbonate contains 62.9% water by mass. Utilize this value to verify the chemical formula of the hydrate of sodium carbonate. Presume a 100.0 gram basis
what is the pH solution if 100 mL of the solution is .15 M acetic acid CH3CO2H and contains 1.56g of sodium acetate, CH3CO2Na? Ka=1.8x10^-5
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