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Physical Chemistry Estimate the bubble point and dew point temperatures of a 25 mol % n-pentane, 45...

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Chemistry

Physical Chemistry

Estimate the bubble point and dew point temperatures of a 25 mol% n-pentane, 45 mol % n-hexane, and 30 mol % n-heptane mixture at1.013 bar.

Data:

lnP5vap = 10.422 - 26,799 / RTδ5 = 7.02 (Cal/cc)(1/2)

lnP6vap = 10.456 - 29,676 / RTδ6 = 7.27 (Cal/cc)(1/2)

lnPvap7 = 11.431 - 35,200 / RTδ7 = 7.43 (Cal/cc)(1/2)

For P in bar, T in K, and R = 8.314 J/(mol * K); The subscripts5,6,7 designate pentane, hexane, and heptane, respectfully

Answer & Explanation Solved by verified expert
4.5 Ratings (896 Votes)
AnsBy shortcut vapor pressure eqn Though not required the table below also shows bubble T and dewT calculations at 70 barFor the bubble calculations in each column the temperature atthe top of the column is used to calculate the Kratio Then yi xiKi The temperature is adjusted until the sum of ys is unityThis is an iterature    See Answer
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