Question 1 An 8.01 g sample of Glaucosil is studied by N; adsorption at -195.8°C. The following data are obtained Pressure 6 25 140 230 285 320 430 505 (mm Hg) Volume 61 127 | 170 197 215 230 277 335 (cm² at 0°C, 1 atm) The vapour pressure of N; at -195.8°C is 1 atm. Calculate the surface area (m²g*) of the sample. • One N; molecule occupies 16.2 Å and 1 Å = 10*º m occupies 16.2'10® m². Avogadro's Constant, NA = 6.02'10²² mol*, 1 mm Hg = 1.316x10° atm, volume of 1 mole of ideal gas at STP = 22.4'10*m² %3D Hint: use BET equation, P.= 760mmHa
Question 1 An 8.01 g sample of Glaucosil is studied by N; adsorption at -195.8°C. The following data are obtained Pressure 6 25 140 230 285 320 430 505 (mm Hg) Volume 61 127 | 170 197 215 230 277 335 (cm² at 0°C, 1 atm) The vapour pressure of N; at -195.8°C is 1 atm. Calculate the surface area (m²g*) of the sample. • One N; molecule occupies 16.2 Å and 1 Å = 10*º m occupies 16.2'10® m². Avogadro's Constant, NA = 6.02'10²² mol*, 1 mm Hg = 1.316x10° atm, volume of 1 mole of ideal gas at STP = 22.4'10*m² %3D Hint: use BET equation, P.= 760mmHa
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
Problem 1.1P
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Transcribed Image Text:Question 1
An 8.01 g sample of Glaucosil is studied by N; adsorption at -195.8°C. The following data are
obtained
Pressure
6
25
| 140
230
285
320
430
505
(mm Hg)
Volume
61
127
| 170
197
215
230
277
335
(cm³ at 0°C, 1 atm)
The vapour pressure of N; at -195.8°C is 1 atm. Calculate the surface area (m².g*) of the
sample.
• One N; molecule occupies 16.2 Å and 1 Å = 1010 m
• occupies 16.2'10°2º m².
Avogadro's Constant, NA = 6.02'10² mol*, 1 mm Hg = 1.316×10° atm, volume of 1
mole of ideal gas at STP = 22.4'10³m³
Hint: use BET equation, P, = 760mmHg
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