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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
The chemical reactor shown below has a cover (called a head) that is held in place by a series of bolts. The head is made of stainless steel (SG = 8.0), is 3 in. thick, has a diameter of 24 in., and covers and seals an opening 20in. in diameter.
Chlorine is to be removed from a vent stream by scrubbing with a 5% w/w aqueous solution of sodium hydroxide. The vent stream is essentially nitrogen, with a maximum concentration of 5.5% w/w chlorine.
why a substance is being heated at a fast rate the temperature of decomposition will be the higher than the obtain at a
Design the manufacture of (tones/day) Ferrous sulphate monohydrate from waste pickle liquor. Pickling is generally associated with the removal of scale with mineral acid. Sulphuric acid is the most commonly used pickling acid.
Suppose the various color frequency and intensity values that comprise a color analysis are combined into a single numerical value, C, for a particular yellow dye. During a test period in which the reactor conditions are carefully controlled and t..
Determine the required mole fractions of the nitrogen and carbon dioxide to produce this mixture. From Chapter 17, the speed of sound is given by.
Compare MACRS depreciation and straight-line depreciation: based solely on the tax effects, which depreciation method (SL or MACRS) would yield a higher net present value for the project?
A supply of nitrogen is required as an inert gas for blanketing and purging vessels. After generation, the nitrogen is compressed and stored in a bank of cylinders, at a pressure of 5 barg.
Estimate the density of air, If we approximate the atmosphere to be 79% nitrogen (N_2) by volume and 21% oxygen (O_2)
Write down a balanced chemical equation for the polymerization and Name the polymer formed by this polymerization.
Find the components of the convective momentum flux pvv inside and outside the slot - Evaluate the xx-component of pvv.
From among the following, choose one which is not an exothermic process. 1. Ammonia synthesis 2. Methanol synthesis
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