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The following data was collected for n-pentane and isopentane: Compound P, (kPa) n-pentane 282.9 at 70°C 895.5 at 120°C Isopentane 955.9 at 115°C 1152.4 at 125°C а) Develop a correlation for the vapor pressure of Isopentane as a function of temperature. Clearly state the units. b) Calculate the vapor pressure of Isopentane at 120°C. c) Estimate the heat of vaporization of Isopentane by using the data in the table.

The following data was collected for n-pentane and isopentane: Compound P, (kPa) n-pentane 282.9 at 70°C 895.5 at 120°C Isopentane 955.9 at 115°C 1152.4 at 125°C а) Develop a correlation for the vapor pressure of Isopentane as a function of temperature. Clearly state the units. b) Calculate the vapor pressure of Isopentane at 120°C. c) Estimate the heat of vaporization of Isopentane by using the data in the table.

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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The following data was collected for n-pentane and isopentane: Compound P, (kPa) n-pentane 282.9 at 70°C 895.5 at 120°C Isopentane 955.9 at 115°C 1152.4 at 125°C а) Develop a correlation for the vapor pressure of Isopentane as a function of temperature. Clearly state the units. b) Calculate the vapor pressure of Isopentane at 120°C. c) Estimate the heat of vaporization of Isopentane by using the data in the table. A closed container contains a mixture of 65.0 mol% n-pentane and 35.0 mol% isopentane. The system is initially all liquid at 120.0°C and high pressure and the pressure is gradually reduced at a constant temperature. d) i. Calculate the pressure (in kPa) at which the first bubble of vapor forms. ii. What is the composition (in mole fractions) of the first bubble of vapor at the conditions found in part (i)? A new mixture contains cyclohexane (Pv=288.3kPa at 120°C), n-pentane and isopentane at 120°C and high pressure. The pressure is reduced at constant temperature to a point at which the liquid phase contains 37.5 mol% n-pentane and the vapor phase contains 15.2 mol% cyclohexane. What is the pressure at which this vapor-liquid equilibrium is reached? e)
Transcribed Image Text:The following data was collected for n-pentane and isopentane: Compound P, (kPa) n-pentane 282.9 at 70°C 895.5 at 120°C Isopentane 955.9 at 115°C 1152.4 at 125°C а) Develop a correlation for the vapor pressure of Isopentane as a function of temperature. Clearly state the units. b) Calculate the vapor pressure of Isopentane at 120°C. c) Estimate the heat of vaporization of Isopentane by using the data in the table. A closed container contains a mixture of 65.0 mol% n-pentane and 35.0 mol% isopentane. The system is initially all liquid at 120.0°C and high pressure and the pressure is gradually reduced at a constant temperature. d) i. Calculate the pressure (in kPa) at which the first bubble of vapor forms. ii. What is the composition (in mole fractions) of the first bubble of vapor at the conditions found in part (i)? A new mixture contains cyclohexane (Pv=288.3kPa at 120°C), n-pentane and isopentane at 120°C and high pressure. The pressure is reduced at constant temperature to a point at which the liquid phase contains 37.5 mol% n-pentane and the vapor phase contains 15.2 mol% cyclohexane. What is the pressure at which this vapor-liquid equilibrium is reached? e)
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