Estimate the heat of vaporization of diethyl ether at its normal boiling point using Trouton's rule and Chen's rule and compare the results with a tabulated value of this quantity.

Calculate the percentage error (absolute value of the percent deviation of estimated value from the true value) that results from using each estimation.

 Then estimate delta Hv at 140.0°C using Watson's correlation.

kJ/mol % error (positive - take the absolute value of the deviation) i Tabulated AH, Trouton's rule i i estimate Chen's rule estimate i i