The zeolite LTA is used as an adsorbent for separations. A nitrogen adsorption study of LTA was performed (0 °C, PN₂= 760 mmHg). Using the BET plot below, calculate the specific surface area (in units of m²/g) of the zeolite. The density and molecular weight of N₂ are 0.808 g/cm³ and 28 g/mol, respectively. Assume nitrogen is a sphere with the projected surface area a (cm²/molecule). Recall that the molar volume of an ideal gas at STP is 22,400 cm³/mol.
The zeolite LTA is used as an adsorbent for separations. A nitrogen adsorption study of LTA was performed (0 °C, PN₂= 760 mmHg). Using the BET plot below, calculate the specific surface area (in units of m²/g) of the zeolite. The density and molecular weight of N₂ are 0.808 g/cm³ and 28 g/mol, respectively. Assume nitrogen is a sphere with the projected surface area a (cm²/molecule). Recall that the molar volume of an ideal gas at STP is 22,400 cm³/mol.
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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The zeolite LTA is used as an adsorbent for separations. A nitrogen adsorption study of LTA was performed (0 °C, PN₂= 760 mmHg). Using the BET plot below, calculate the specific surface area (in units of m²/g) of the zeolite. The density and molecular weight of N₂ are 0.808 g/cm³ and 28 g/mol, respectively. Assume nitrogen is a sphere with the projected surface area a (cm²/molecule). Recall that the molar volume of an ideal gas at STP is 22,400 cm³/mol.
Transcribed Image Text:P/[v(P-P.)}. g/cm³
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
-0.01
213
0
Po
y=8.84E-02x-2.84E-03
R² = 9.80E-01
01
012
03
D
04
P/P
O
05
06
017
018
Transcribed Image Text:P
1
v(P-P) VmC
4
α = 1.091
+
(c-1)
VmC
M 2/3
(NAP)
P
Po
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