The volume of gas at 20 °C and 1.00 bar adsorbed on the surface of 1.50 g of a sample of silica at 0 °C was 1.60 cm³ at 52.4 kPa and 2.73 cm³ at 104 kPa. What is the number of adsorption sites avaible? Assume the adsorption follows the Langmuir isotherm. Answer: cm³

The following data refers to the adsorption of diatomic nitrogen on a sample of carbon black at 77 K. Calculate the surface area in square meters per gram on carbon black with k = 4.05 by the Harkins-Jura method. Relative pressure, P/P° 0.05 0.10 0.15 0.20 0.25 0.30 Volume of N2 adsorbed at STP, cc 12.4 14.3 16.2 17.8 19.0 20.5

For the adsorption of a substance A from aqueous solution by charcoal at 25C, the Freundlich constants are n = 3.0 and k = 0.50 for y in grams per gram and C in g L-1. What weight of A will be adsorbed by 2 g of charcoal from 1 L of a solution containing originally 2 g of substance? Answer is [1 g]

1.2-MIB (Methylisoborneol) is one of the by-products of algae and is a representative trace pollutant that causes taste and smell of water. The isothermal adsorption equation of 2-MIB applied with activated carbon in water without organic matter was experimentally determined as follows.q = 1.48C^(0.65) Where q is ng 2-MIB / g activated carbon and C is the concentration of g / L 2-MIB (g / L).(n is 10 ^ -9) A. Calculate the amount of activated carbon (mg / L) required to reduce the concentration of 2-MIB to 5 g / L. It is assumed that the concentration of 2-MIB in water without organic matter is 50 g / L.B. The activated carbon adsorption column will be designed with a three-year operating period. If the density of activated carbon is 540 kg / m3 and the design flow rate per column effective cross-section is 10 m / hr, find the depth of activated carbon in the empty bed contact time (EBCT) and column. Here, it is assumed that there is no competitive adsorption that can interfere with…