12 Brunauer -Emmett -Teller (BET) aims to explain the physical adsorption of gas molecules on a solid surface and serves the basis for s on measurement of surface area of materials. The data for the adsorption of N2 on TiO2 are reported below. At 75 K, p*=76.0kPa p*/kPa 0.160 1.87 6.11 11.67 17.02 21.92 27.29 V/mm 601 720 822 935 1046 1146 1254 The equation used to plot (see the attached figure) which confirm (BET isotherm) (C-1)Z z_- 1 (1-Z)V CVmon CVmon 10*z Y axis= X axis = 10'Z (1-Z)V/mm³ where Z=P/p* Use above information and do the followings: a) Fill in the blanks' Y axis Хаxis b) From the graph given below, use slope and y-int to find "C" and Vmon

Principles of Instrumental Analysis
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Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
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Chapter15: Molecular Luminescence Spectrometry
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Problem 15.12QAP: Equations for the chemiluminescence determination of SO2 are given on page 383. Derive an expression...
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Brunauer -Emmett -Teller (BET) aims to explain the physical
adsorption of gas molecules on a solid surface and serves the basis for
7 of 12
measurement of surface area of materials.
The data for the adsorption of N2 on TiO2 are reported below.
At 75 K, p*=76.0kPa
p*/kPa
0.160
1.87 6.11 11.67 17.02 21.92 27.29
V/mm
601
720
822
935
1046 1146 1254
The equation used to plot (see the attached figure) which confirm (BET
isotherm)
(C-1)Z
(1-Z)V CVmon
CVmon
10*z
(1-Z)V/mm3
X axis = 10'Z
Y axis=
where Z=P/p*
Use above information and do the followings:
a) Fill in the blanks'
Y axis
X axis
b) From the graph given below, use slope and y-int to find "C" and Vmon
Transcribed Image Text:Brunauer -Emmett -Teller (BET) aims to explain the physical adsorption of gas molecules on a solid surface and serves the basis for 7 of 12 measurement of surface area of materials. The data for the adsorption of N2 on TiO2 are reported below. At 75 K, p*=76.0kPa p*/kPa 0.160 1.87 6.11 11.67 17.02 21.92 27.29 V/mm 601 720 822 935 1046 1146 1254 The equation used to plot (see the attached figure) which confirm (BET isotherm) (C-1)Z (1-Z)V CVmon CVmon 10*z (1-Z)V/mm3 X axis = 10'Z Y axis= where Z=P/p* Use above information and do the followings: a) Fill in the blanks' Y axis X axis b) From the graph given below, use slope and y-int to find "C" and Vmon
b) From the graph given below, use slope and y-int to find "C" and Vme
mon
0.00
Fit 1: Linear, Y=B°X+A
Equation:
Y = 0.0012257*X+ 3.98142E-006
Number of data points used =7
Average X 0.16173
Average Y = 0.000202214
Regression sum of squares = 1.64799E-007
Residual sum of squares = 5.85896E-011
Coef of determination, R-squared 0.999645
Residual mean square, sigma-hat-sq'd = 1.17179E-011
0.00
0.00
0.00
0.00
0.00
0.00
0.10
0.20
0.30
0.40
c)At 1.00 atm and 273 K, use Vmon to calculate the surface area of TiO2
(each atom occupies an area of about 0.16nm²)
Transcribed Image Text:b) From the graph given below, use slope and y-int to find "C" and Vme mon 0.00 Fit 1: Linear, Y=B°X+A Equation: Y = 0.0012257*X+ 3.98142E-006 Number of data points used =7 Average X 0.16173 Average Y = 0.000202214 Regression sum of squares = 1.64799E-007 Residual sum of squares = 5.85896E-011 Coef of determination, R-squared 0.999645 Residual mean square, sigma-hat-sq'd = 1.17179E-011 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.20 0.30 0.40 c)At 1.00 atm and 273 K, use Vmon to calculate the surface area of TiO2 (each atom occupies an area of about 0.16nm²)
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