# 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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**Posted Date:**December 31, 2018 10:26:08

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