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The following data give the vapor pressure of water at various temperatures. Transform the data, using ln (P) for the dependent variable and 1/T for the independent variable. Carry out the linear least-squares fit by hand, calculating the four sums.

The following data give the vapor pressure of water at various temperatures. Transform the data, using ln (P) for the dependent variable and 1/T for the independent variable. Carry out the linear least-squares fit by hand, calculating the four sums. Find the molar enthalpy change of vaporization.

Temperature (◦C)                         Vapor pressure (Torr)
0 ....................................................................................4.579
5 ....................................................................................6.543
10 ..................................................................................9.209
15 ................................................................................12.788
20 ................................................................................17.535
25 ................................................................................23.756

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1 T K ln P torr 0 003354 3 167835 0 003411 2 864199 0 003470 2 548507 0 003532 2 220…View the full answer


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Mathematics for Physical Chemistry

Mathematics for Physical Chemistry

ISBN: 978-0124158092

4th Edition

Authors: Robert G. Mortimer

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Question Details
Chapter # 16
Section: Exercises
Problem: 4
Posted Date: December 31, 2018 10:26:08

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