כטןεБӘЛ(b) Adsorption of a solute can take place from the liquid surface to a solid surface when thesolution is treated with a solid. Assuming that the solute adsorbs strongly compared to thesolvent, sketch comparative qualitative plots of x/m (amount adsorbed /g) vs C (concentrationin solution) for the individual adsorption of ethyl, n- propyl and n-butyl alcohols from anaqueous solution to a hydrophilic silica sample. Give suitable explanation for the plots. (2)

Comparative Qualitative Plots and Explanation Plot Description:- x/m vs. C: - x/m represents the…

Answered: כטן ε БӘЛ (b) Adsorption of a solute…

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...

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Plot (x/m) versus P for the Freundlich adsorption isotherm Describe how does Freundlich isotherm varies at high pressure and low pressure conditions?
The following data were obtained for the adsorption of acetone on charcoal from an aqueous solution at 180C. Y (millimoles/g) C (millimoles/liter) 0.208 2.34 0.618 14.65 1.075 41.03 1.5 88.62 2.08 177.69 2.88 268.97 a) Find the constants k and n of the Freundlich equation. b) Find the constants a and b in the Langmuir equation. c) Find the constants k and n in the Temkin isotherm. d) Which of the isotherm fit the data best? Answer letter D only thank you!
Benzene on graphite follows the Langmuir isotherm. At a pressure of 1 atm, theThe volume of benzene adsorbed on a sample of graphite was 4.2 mm3 atconditions T = 0°C and 1 atm. At 3 atm it was 8.5 mm3. Suppose 1 molecule ofbenzene occupies 30Å and estimate the surface area of graphite.
What is the difference between a diffusion reaction and a diffusion-controlled reaction?
Nitrogen gas adsorbed on a surface to the extent of 1.242 cm3 g−1 at 350 kPa and 180 K, but at 240 K the same amount of adsorption was achieved only when the pressure was increased to 1.02 MPa. What is the enthalpy of adsorption of nitrogen on the surface?
Hydrogen purification was conducted at 550 °C using a 3-mm-thick palladium sheet having an area of 0.25 m?. (a) Calculate the diffusion coefficient of hydrogen in palladium at this temperature. The preexponent and the activation energy are 12,000 J/mol and 6.5 x 108 m?/s, respectively. R = 8.3145 J/mol-K. (b) When the steady-state condition was attained, hydrogen concentrations at the high- and low-pressures side of the plate were 1.7 and 0.5 kg/m³. Compute the amount of hydrogen that passes through the sheet per hour (in kg/h).
no rounding off
A certain solid sample adsorbs 0.63 mg of CO when the pressure of the gas is 36.0 kPa and the temperature is 300 K. The mass of gas adsorbed when the pressure is 4.0 kPa and the temperature is 300 K is 0.21 mg. The Langmuir isotherm is known to describe the adsorption. Estimate the fractional coverage of the surface at the two pressures.
2) Consider the following reaction and associated rate law: X (g) + Y(g) → Z Rate = k[X] [Y] b Use the data in Table 1 in the following problems. Table 1 Reaction Data [X]。 (M) [Y]。 (M) Rate (M/s) 0.882 0.217 283. 07 0.882 0.451 624. 47 0.882 0.572 820.57 0.882 0.882 1308. 22 0.228 0.882 124.96 0.442 0.882 382. 56 0.67 0.882 804. 48
2. Initial concentration of SAS solution equals to 0.44 mol/dm³. After adsorption of SAS from 60 cm³ of aqueous the concentration of SAS decreased up to 0.35 mol/dm³. The mass of adsorbent equals to 3 grams. Calculate the adsorption value (mol/g).
In a study of the formation of HI from its elements,H₂(g)+I₂(g)→ 2HI(g) equal amounts of H₂ and I₂ were placed in a container, whichwas then sealed and heated.(a) On one set of axes, sketch concentration vs. time curves for H₂ and HI, and explain how Qchanges as a function of time.(b) Is the value of Qdifferent if [I₂] is plotted instead of [H₂]?
Experimentally measured adsorption isotherms often deviate from the Langmuir model. Explain what causes these deviations, and why the Langmuir model generally describes chemisorption better than physisorption.

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