Estimate the heat of vaporization of cyclohexane 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.

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?