regression sheet
TRANSCRIPT
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8/11/2019 Regression Sheet
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x, Clarkson University, spring 2004
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A B C D E F G H I J
Solution to Laboratory Assignment 27
Analysis of data on vapor pressure of carbon monoxide from Perry's Chemical Engineers Handbook
Fit to Antoine equation (ln(p) = A - B/(T + C)). Where T is absolute temperature and A, B, CSolution: One linear form is ln(p) = A + (AC-B)/T - C ln(p)/T are constants to be determined.
Click on cells to see the formulas used.
p (Pa) from
p (torr) T (C) p (Pa) T (K) ln(p) 1/T ln(p)/T correlation
1 -222.0 133 51.2 4.89 0.0196 0.096 132
5 -217.2 667 56.0 6.50 0.0179 0.116 734
10 -215.0 1333 58.2 7.20 0.0172 0.124 1412
20 -212.8 2666 60.4 7.89 0.0166 0.131 2544
40 -210.0 5333 63.2 8.58 0.0158 0.136 4971
60 -208.1 7999 65.1 8.99 0.0154 0.138 7497
100 -205.7 13332 67.5 9.50 0.0148 0.141 12062
200 -201.3 26664 71.9 10.19 0.0139 0.142 25931
400 -196.3 53329 76.9 10.88 0.0130 0.142 54084
760 -191.3 101325 81.9 11.53 0.0122 0.141 100861
202650 89.7 12.22 0.0112 0.136 225131
T (C) p (atm) 506625 102.5 13.14 0.0098 0.128 613903-191.3 1 1013250 112.2 13.83 0.0089 0.123 1098707
-183.5 2 2026500 123.5 14.52 0.0081 0.118 1895541
-170.7 5 3039750 131.3 14.93 0.0076 0.114 2594755
-161.0 10
-149.7 20
-141.9 30
Using Analysis Tools, Regression we get the output below.
SUMMARY OUTPUT
Regression Statistics
Multiple R 0.9996912
Original Data Modified units Parameters for regression
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K L M N O
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Vaporpressur
e,
Pa
Temperature, K
Antoine correlation for CO
Experimental
Correlation
To get a smooth line for the correlation, right click ona correlation point, select Format Data Series,Patterns, Line Custom Smoothed, Marker None. Do
nottry to use Trendline as none of the equationsbuilt into this tool is the Antoine equation.