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1. The table below shows data reported for the adsorption of n-butane on silica gel at 50°C. For this catalyst a surface area of 832 m²/g has been reported. Adsorbed concentration Gas concentration (x106 mol/cm³) (x103 mol/g) 0.08 0.02 0.28 0.09 0.60 0.15 0.70 0.195 0.96 0.23 1.20 0.27 1.54 0.325 1.60 0.35 1.92 0.365 1.90 0.385 1.94 0.395 a. Use the data and the equation described in class for Langmuir monolayer absorption to determine the surface area of the catalyst. How does it compare with the surface area reported? b. Use the BET adsorption isotherm to calculate the catalyst surface area. How do the two methods compare? c. Usethe Hutting adsorption isotherm to calculate catalyst surface area. How does it compare with the other two isotherms?

1. The table below shows data reported for the adsorption of n-butane on silica gel at 50°C. For this catalyst a surface area of 832 m²/g has been reported. Adsorbed concentration Gas concentration (x106 mol/cm³) (x103 mol/g) 0.08 0.02 0.28 0.09 0.60 0.15 0.70 0.195 0.96 0.23 1.20 0.27 1.54 0.325 1.60 0.35 1.92 0.365 1.90 0.385 1.94 0.395 a. Use the data and the equation described in class for Langmuir monolayer absorption to determine the surface area of the catalyst. How does it compare with the surface area reported? b. Use the BET adsorption isotherm to calculate the catalyst surface area. How do the two methods compare? c. Usethe Hutting adsorption isotherm to calculate catalyst surface area. How does it compare with the other two isotherms?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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1. The table below shows data reported for the adsorption of n-butane on silica gel at 50°C. For this catalyst a surface area of 832 m²/g has been reported. Adsorbed concentration Gas concentration (x106 mol/cm³) (x103 mol/g) 0.08 0.02 0.28 0.09 0.60 0.15 0.70 0.195 0.96 0.23 1.20 0.27 1.54 0.325 1.60 0.35 1.92 0.365 1.90 0.385 1.94 0.395 a. Use the data and the equation described in class for Langmuir monolayer absorption to determine the surface area of the catalyst. How does it compare with the surface area reported? b. Use the BET adsorption isotherm to calculate the catalyst surface area. How do the two methods compare? c. Usethe Hutting adsorption isotherm to calculate catalyst surface area. How does it compare with the other two isotherms?
Transcribed Image Text:1. The table below shows data reported for the adsorption of n-butane on silica gel at 50°C. For this catalyst a surface area of 832 m²/g has been reported. Adsorbed concentration Gas concentration (x106 mol/cm³) (x103 mol/g) 0.08 0.02 0.28 0.09 0.60 0.15 0.70 0.195 0.96 0.23 1.20 0.27 1.54 0.325 1.60 0.35 1.92 0.365 1.90 0.385 1.94 0.395 a. Use the data and the equation described in class for Langmuir monolayer absorption to determine the surface area of the catalyst. How does it compare with the surface area reported? b. Use the BET adsorption isotherm to calculate the catalyst surface area. How do the two methods compare? c. Usethe Hutting adsorption isotherm to calculate catalyst surface area. How does it compare with the other two isotherms?
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