Wet air containing 4.0 mole% water vapor is passed through a column of calcium chloride pellets. The pellets adsorb 97.0% of the water and none of the other constituents of the air. The column packing was initially dry and had a mass of 3.40 kg. Following 5.0 hours of operation, the pellets are reweighed and found to have a mass of 3.54 kg. Calculate the molar flow rate (mol/h) of the feed gas and the mole fraction of water vapor in the product gas. The mole fraction of water in the product gas is monitored and found to have the value calculated in part (a) for the first 10 hours of operation, but then it begins to increase. What is the most likely cause of the increase? If the process continues to run, what will the mole fraction of water in the product gas eventually be?

Wet air containing 4.0 mole% water vapor is passed through a column of calcium chloride pellets. The pellets adsorb 97.0% of the water and none of the other constituents of the air. The column packing was initially dry and had a mass of 3.40 kg. Following 5.0 hours of operation, the pellets are reweighed and found to have a mass of 3.54 kg. Calculate the molar flow rate (mol/h) of the feed gas and the mole fraction of water vapor in the product gas. The mole fraction of water in the product gas is monitored and found to have the value calculated in part (a) for the first 10 hours of operation, but then it begins to increase. What is the most likely cause of the increase? If the process continues to run, what will the mole fraction of water in the product gas eventually be?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Determine the maximum theoretical specific gravity of a paving mixture having a weight of 1210gm in air and 635gm in water. Knowing that the voids in mineral aggregate is 14 %, the asphalt content used in this mixture is 5.5 % with a specific gravity of asphalt equals to 1.02 and the amount of asphalt absorbed by aggregates is 1.3%.
b) Coal-fired power plants emit airborne particulate matter to the atmosphere known as fly ash. Summarise the mechanism of fly ash collection from the flue gas stream by an electrostatic precipitator (ESP).
An extraction experiment was carried out with the soxhlet extraction technique to obtain oil from a plant seed. In the experiment, 10 g of plant seeds were taken and extracted with 150 mL of hexane solvent, The oil-hexane mixture obtained at the end of the extraction will be separated in the rotary evaporator and the mass and percent extraction efficiency of the collected oil will be calculated. The data obtained at the end of the experiment are given in the table below. Accordingly, calculate the amount of oil obtained, the amount of oil obtained per 1 g of plant seed and the percent extraction efficiency by establishing a mass conservation balance around the rotary evaporator. Weighing result (g) The tare of the sampled balloon 35 Initial mass (balloon + solvent + oil) 88.13 Tare the balloon in which the solvent was collected 45 93.47 At the end of the experiment, the balloon + solvent mass in which the solvent is collected
At 0°C and 1 bar, a monolayer of CO adsorbed on 1 g of Fe/Al2O3 catalyst occupies a volume of 4.25 cm3. What is the area of the catalyst? The area per adsorbed particle is 0.165 nm2. Give your answer in m2.
3
Calculate the modulus of elasticity of a metal-matrix composite under isostrain conditions. Assume an aluminum matrix is reinforced by 80 vol % SiC fibers. Express your answer to three significant digits. The modulus of elasticity is Submit Request Answer | ΑΣΦ | | vec ? MPa.
In the solvent hexane, the average end-to-end distance of a 7 kDa molecular weight poly(ethylene glycol) polymer chain is 3.65 nm and the average end-to-end distance of a 56 kDa molecular weight poly(ethylene glycol) polymer chain is 7.30 nm. By calculation, show whether hexane is a good, poor or theta solvent for poly(ethylene (i) glycol).
Estimate the filtration flow (cm³/sec) of pure water across a membrane with a total surface area of 900 cm². The viscosity of water is 1 cP. The pores in the membrane are rectangular slits with a slit opening of 0.55 micrometers. The porosity of the membrane is 20% and the membrane thickness is 0.095 cm. The pores are also tortuous with a tortuosity of 1.25. The pressure drop across the membrane which drives the filtration flow is 2500 mmHg.
A capillary viscometer was used to measure the viscosity of a fluid at room temperature. At a pressure drop per unit length of 0.28 mmHg cm−1, i.e., ΔP/L, the measured flow rate of the fluid through the capillary viscometer was found to be 0.0125 cm3 s−1. When the value of ΔP/L was increased to 0.79 mmHg cm−1, the flow rate of the fluid was found to be .047 cm3 s−1. Under these conditions, is the fluid Newtonian or non-Newtonian? Be sure to justify your answer.