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1. If the face opening for a laboratory hood installation is to be 2 feet high and 5 feet wide, what volumetric flow rate is required to generate a face velocity of 100 ft/min?a. 2000 ft3/minb. 500 ft3/minc. 1000 ft3/mind. 10000 ft3/min
2. The volume of air flowing through a 2 foot by 2 foot duct with a velocity of 150 fpm is:a. 300 fpmb. 300 cfmc. 600 cfmd. 150 cfme. 600 fpm
3. Given that the molecular weight of Toluene is 92.1, what is the equivalent value for a measure value of 150 ppm?a. 565 mg/m3b. 40 mg/m3c. 150 mg/m3d. 75 mg/m3e. 300 mg/m3
4. Calculate the eight hour TWA for the following asbestos exposure results collected on one individual during a shift:- 2 hours at 0.05 f/cc- 2 hours at 0.10 f/cc- 30 minutes at 0.30 f/cc- 30 minutes lunch outside the work area - no sampling- 3 hours at 0.02 f/cc
a. 0.51 f/ccb. 0.068 f/ccc. 0.064 f/ccd. 0.38 f/cce. None of the above - it can not be determined from the available information
Calculate the wavelength, in meters of a photon capable of exciting an electron in He+ from the ground state to n = 4
production of chemicals from coalcoal has been considered a major component of u.s. energy reserves for a long time and
A first order reaction requires two equal sized CSTR. The conversion is 1. more when they are connected in series. 2. less when they are connected in series.
Acetylene (C2H2) and butane (C4H10) are gaseous fuels with enthalpies of combustion of 49.9 kJ/g and 49.5 kJ/g, respectively. Compare the energy available from the combustion of a given volume of acetylene to the combustion energy from the same ..
For the following cases: How much energy is lost every day when the steam temperature is maintained at 200oC, and the surrounding average air temperature is 20.0oC, and the surroundings average air temperature is 20.0oC? Neglect losses though the end..
The reactor is jacketed by water at a temperature of 200C. The overall heat transfer coefficient has been estimated at 300 J/(m2.s.K), while the heat transfer area is 0.75 m2. Mixing is ensured through an agitator, which contributes a work of 12 KW..
U-235 undergoes many different fission reactions. For one such reaction, when U-235 is struck with a neutron, Ce-144 and Sr-90 are produced along with some neutrons and electrons.
part-1why fiuids are importantnbspin chemical engineering1. enormous number of materials normally exist fias gases or
For the following reactions:a. Specify which of the following equations represent oxidation-reduction reactions. b. Write the balanced half-reactions for the reactions you identified as redox in part a. c. Identify the species being oxidized and th..
Chlorine has two isotopes 35Cl and 37 Cl, for the anion Cl- , of the isotope 37 Cl, specify the number of protons np ,number of electrons ne and numbers of neutrons nn
Derive an equation for the latent heat of fusion that is a function of the radius of the particle. Using this equation, for a copper particle that has a radius of 2.5 nm, find the ratio of the latent heat of fusion of the particle to the laten..
The band gap of indium gallium arsenide varies based on the concentration of gallium in the material. A sample of indium gallium arsenide absorbs light with a wavelength less than 1.37 microns. What is the band gap of the indium gallium arsenide samp..
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