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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 3.40kg. Following 5.0 hours of operation, the pellets are reweighed and found to have a mass of3.54kg.
(a) Calculate the molar flow rate (mol/h) of the feed gas and the mole fraction of water vapor in the product gas.
(b) The mole fraction of water in the product gas is monitored and found to have the value calculated in part (a) for the first 10hours 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?
According to the second law of thermodynamics, the change in the entropy of the universe (DeltaSuniv) during a spontaneous reaction
Suppose 5.0 mol of antimony (III)fluoride is added to 10.0 mol of carbon tetrachloride. How many grams CCl2F2 and SbCl3 are there if the reaction is 100% complete?
determine How many formula units(formula un) of sodium iodide(NaI) are present in 9.54 grams of this compound and also calculate how many gms of sodium iodide are present in 6.07E+21 formula units of this compound.
Calculate the pressure exerted by Ar for a molar volume of 1.04L/mol at 475K (a) the ideal gas law and (b)using the van der Waals equation of state
The combined flow to the two tanks is .1 m^3/s. the depth of each tank is 2 m and each has a detention time of 4 h. what is the surface area of each tank and what is the overflow rate of each tank in m^3/d*m^2?
The pressure and temperature remain the same, but the volume has changed to 14.0 . How many moles of gas () remain in the cylinder? in moles
How much heat is absorbed when 5.53 mol of NH4NO3 solid is dissolved in water? (Heat of soluton = 25.7 kJ/mol)
What is the oxidation number of chlorine atom in Clo- c)What is the oxidation number of manganese in MnO2
A 782 mL gas sample at STP is compressed to a volume of 131 mL, and the temperature is increased to 22?C. What is the new pressure of the gas in Pa?Answer in units of Pa.
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
Discuss the probable reasons for the differences in flow patterns in a horizontal heated tube as compared to (i) vertical heated tube (ii) horizontal unheated tube?
What is the total volume of gases produced at 819K and 1atm pressure when 256 g of ammonium nitrate (NH4NO2) undergoes the following decomposition?
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