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Consider the all cis isomer of 1,3,5-tribromo-2,4,6-trimethylcyclohexane. Draw a sawhorse representation of each of the two possible chair forms.
Describe how you could use a garden hose and a bucket of water to make a barometer. How high a column of water would standard atmospheric pressure
Give the primitive unit vector and draw it on the figure. Is this a primitive lattice or a composite of two simple lattices?
What is the concentration of that k(boron in liquid and soild Si) = 0.8 and that the Si liquid has 1.0x1016 boron/cm3 initially?
Describe the bomb calorimeter used for the determination of calorific valve with the help of neat diagram.
A solution has the following composition, expressed as mole percent: ethane, 0.25%; propane, 25%; isobutane, 18.5%; n-butane, 56%; isopentane, 0.25%.
A 30 mol% feed of benzene in toluene is to be differentially distilled. A distillate having an average composition of 45 mol% benzene is to be produced.
For continuous distillation of a binary mixture of constant relative volatility, Fenske equation (6-62) can be used to estimate the minimum number.
A straw oil used to absorb benzene from coke-oven gas is to be steamstripped in a sieve-plate column at atmospheric pressure to recover the dissolved benzene.
Assume that the properties of the liquid are similar to those of pure water and that the properties of the flue gases are similar to those of air.
A system for recovering methanol from a solid product wet with methanol involves evaporation of the alcohol into a stream of inert gas, essentially nitrogen.
Air at 300 K is used to dry a plastic sheet. The solvent wetting the plastic is acetone.
What will be the composition of the vapor and liquid and the pressure in the separator if it behaves as an ideal stage?
Assuming that all the resistance to mass transfer resides in the liquid phase, estimate the chlorine removal efficiency achieved.
A cooling tower, 2 m in diameter, packed with 75-mm ceramic Hiflow rings, is fed with water at 316 K at a rate of 25 kg/m2-s.
Consider a tray absorber with a constant Murphree efficiency EMGE = 0.75 and an average absorption factor A = 1.5.
Absorption with chemical reaction: H,S scrubbing with MEA As shown in Problem, scrubbing of hydrogen sulfide from natural gas using water.
An aqueous acetic acid solution flows at the rate of 1000 kg/hr. The solution is 1.1 wt% acetic acid.
A 1-butanol acid solution is to be extracted with pure water. The butanol solution contains 4.5 wt% of acetic acid and flows at the rate of 400 kg/hr.
The superficial liquid velocity will be 0.01 m/s, which is safely above the minimum value for good wetting.
A tower packed with 25-mm ceramic Raschig rings is to be used for absorbing benzene vapor from a dilute mixture with an inert gas.
Pressure drop in beds packed with second-generation random packings A packed tower is to be designed for the countercurrent.
A wastewater stream of 0.038 m3/s, containing 10 ppm (by weight) of benzene, is to be stripped with air in a packed column operating at 298 K.
Stripping Chloroform from Water by Sparging with Air Chlorinating drinking water kills microbes but produces trace amounts.
Determine the composition of the liquid in equilibrium with a vapor containing 70 mol% benzene-30 mol% toluene.