Prepare a plot of the activity coeffi cients of a binary mixture of ethanol (1) and n-heptane (2) versus ethanol mole fraction in a binary mixture at 50°C using the UNIQUAC activity coeffi cient model. The UNIQUAC parameters are reported as follows:

Compare the results to the following set of measured data:

Transcribed Image Text:

r 9 9' ethanol 2.11 1.97 0.92 n-heptane 5.17 4.40 4.40 and 12 a21 -105.23 - 1380.3