4. At 20°C, n-pentane has a vapor pressure of 0.573 bar (P1*) and n-hexane has a vapor pressure of 0.157 bar (P2*). A solution has a mole fraction ofn-pentane of 0.550(x) at 20°C. [This makes 0.450 the mole fraction (x2) of n-hexane]. If the partial pressure of the n-pentane above this solution is 0.295 bar and the partial pressure of n-hexane is 0.0606 bar, what are the activity coefficients (y:) of n-pentane and n-hexane for the solution?
4. At 20°C, n-pentane has a vapor pressure of 0.573 bar (P1*) and n-hexane has a vapor pressure of 0.157 bar (P2*). A solution has a mole fraction ofn-pentane of 0.550(x) at 20°C. [This makes 0.450 the mole fraction (x2) of n-hexane]. If the partial pressure of the n-pentane above this solution is 0.295 bar and the partial pressure of n-hexane is 0.0606 bar, what are the activity coefficients (y:) of n-pentane and n-hexane for the solution?
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
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Help me answer this three problem or two problem here i really need to pass This exam ??? im begging you please help me i dont have ask expert question so please solve two problems for me as a gift this coming Christmas. thank you so muchhh
![4. At 20°C, n-pentane has a vapor pressure of 0.573 bar (P1*) and n-hexane has a vapor pressure of 0.157 bar (P2*).
A solution has a mole fraction of n-pentane of 0.550(x) at 20°C. [This makes 0.450 the mole fraction (x2) of
n-hexane]. If the partial pressure of the n-pentane above this solution is 0.295 bar and the partial pressure of
n-hexane is 0.0606 bar, what are the activity coefficients (yi) of n-pentane and n-hexane for the solution?
5. Calculate the vapor pressure of an aqueous solution where the mole fraction of a nonvolatile solute is 0.0300 and
the temperature is 35°C. The vapor pressure of pure water at 35°C is 42.2 torr.
6. Determine the mole fraction of benzene (XB) in a benzene-toluene mixture that boils at 363 K and 1.00 atm (Psoln).
At 363 K, the vapor pressure of pure benzene (P°B) is 1.34 atm and the vapor pressure of pure toluene (P°T) is 0.534
atm.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc5228331-2a9c-4074-9619-463ded65b438%2F7e16ef8e-ba66-4dc4-bb8f-ae0870d496fa%2F3jki0ns_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. At 20°C, n-pentane has a vapor pressure of 0.573 bar (P1*) and n-hexane has a vapor pressure of 0.157 bar (P2*).
A solution has a mole fraction of n-pentane of 0.550(x) at 20°C. [This makes 0.450 the mole fraction (x2) of
n-hexane]. If the partial pressure of the n-pentane above this solution is 0.295 bar and the partial pressure of
n-hexane is 0.0606 bar, what are the activity coefficients (yi) of n-pentane and n-hexane for the solution?
5. Calculate the vapor pressure of an aqueous solution where the mole fraction of a nonvolatile solute is 0.0300 and
the temperature is 35°C. The vapor pressure of pure water at 35°C is 42.2 torr.
6. Determine the mole fraction of benzene (XB) in a benzene-toluene mixture that boils at 363 K and 1.00 atm (Psoln).
At 363 K, the vapor pressure of pure benzene (P°B) is 1.34 atm and the vapor pressure of pure toluene (P°T) is 0.534
atm.
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