A mixture of hexane (hex) and n-octane (oct) forming an ideal solution contains a mole fraction of hexane as 0.3. At 80°C, the vapor pressures of hexane and n-octane are 1062.7 and 175 mmHg, respectively. i. Calculate the partial pressures of hexane and n-octane above a 80°C solution. ii. Find the total vapor pressure of the solution at 80°C. iii. Calculate the mole fractions of hexane and n-octane in the vapor phase. iv. Draw a representative graph showing pressures (P, Phex, Poct, P"hex, P"oct) Versus xhex,liquid.
A mixture of hexane (hex) and n-octane (oct) forming an ideal solution contains a mole fraction of hexane as 0.3. At 80°C, the vapor pressures of hexane and n-octane are 1062.7 and 175 mmHg, respectively. i. Calculate the partial pressures of hexane and n-octane above a 80°C solution. ii. Find the total vapor pressure of the solution at 80°C. iii. Calculate the mole fractions of hexane and n-octane in the vapor phase. iv. Draw a representative graph showing pressures (P, Phex, Poct, P"hex, P"oct) Versus xhex,liquid.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:II. IDEAL SOLUTIONS
A mixture of hexane (hex) and n-octane (oct) forming an ideal solution contains a mole
fraction of hexane as 0.3. At 80°C, the vapor pressures of hexane and n-octane are 1062.7
and 175 mmHg, respectively.
i. Calculate the partial pressures of hexane and n-octane above a 80°C solution.
ii. Find the total vapor pressure of the solution at 80°C.
iii. Calculate the mole fractions of hexane and n-octane in the vapor phase.
iv. Draw a representative graph showing pressures (P, Phex, Poct, Phex, P*oct) versus xhex,liquid-
P".
Figure Q2. Pressure versus Xhex,liquid
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