a) What assumptions are made in the derivation of the Langmuir equation? Use a diagram to illustrate your answer. b) A material has a monolayer capacity of 12.30 mmol g¹ for nitrogen adsorption at 77 K. Given that the area occupied by 1 molecule of nitrogen is 1.62 x 10-15 cm², what is the surface area of the material? Comment on the answer obtained in the context of your understanding of this parameter.

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
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QB5. a) What assumptions are made in the derivation of the Langmuir equation?
Use a diagram to illustrate your answer.
b) A material has a monolayer capacity of 12.30 mmol g¹ for nitrogen
adsorption at 77 K. Given that the area occupied by 1 molecule of
nitrogen is 1.62 x 10-15 cm², what is the surface area of the material?
Comment on the answer obtained in the context of your understanding of
this parameter.
Transcribed Image Text:QB5. a) What assumptions are made in the derivation of the Langmuir equation? Use a diagram to illustrate your answer. b) A material has a monolayer capacity of 12.30 mmol g¹ for nitrogen adsorption at 77 K. Given that the area occupied by 1 molecule of nitrogen is 1.62 x 10-15 cm², what is the surface area of the material? Comment on the answer obtained in the context of your understanding of this parameter.
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