The following chart below is a plot of VLE data from the Dortmund data bank for a binary mixture of acetone (1) and isopropanol (2) at a constant temperature of 328.15 K. Values for the plot are also included in the table below. The saturated vapor curve is magenta, and the saturated liquid curve is cyan. Pressure (kPa) c) 95 85 75 65 55 45 35 25 0 T=328.15 K 0.2 0.4 0.6 Mole fraction x1, y1 0.8 1 -P-X -Py P (kPa) 30.30 34.393 0.0237 0.1166 39.93 0.0642 0.2777 44.208 0.0971 0.3625 52.026 0.1591 0.4762 0.2353 0.5722 59.05 60.848 0.2687 0.6024 69 0.3879 0.6995 71.177 0.4314 0.7284 75.068 0.5234 0.7655 80.287 0.6084 0.8098 85.038 0.7216 0.8617 85.942 0.7338 0.8729 91.22 0.8569 0.924 94.308 0.9214 0.9629 96.91 X₁ 0 1 Y₁ 0 1 A superheated vapor of acetone and isopropanol with mole fractions y₁=0.36 and y2=0.64 is initially at 35 kPa pressure. What pressure must you increase this gas mixture to before it starts to condense? (Hint: you can approximate this simply on the plot). Draw the path between initial conditions, and final conditions (the dew pressure) on the plot.
The following chart below is a plot of VLE data from the Dortmund data bank for a binary mixture of acetone (1) and isopropanol (2) at a constant temperature of 328.15 K. Values for the plot are also included in the table below. The saturated vapor curve is magenta, and the saturated liquid curve is cyan. Pressure (kPa) c) 95 85 75 65 55 45 35 25 0 T=328.15 K 0.2 0.4 0.6 Mole fraction x1, y1 0.8 1 -P-X -Py P (kPa) 30.30 34.393 0.0237 0.1166 39.93 0.0642 0.2777 44.208 0.0971 0.3625 52.026 0.1591 0.4762 0.2353 0.5722 59.05 60.848 0.2687 0.6024 69 0.3879 0.6995 71.177 0.4314 0.7284 75.068 0.5234 0.7655 80.287 0.6084 0.8098 85.038 0.7216 0.8617 85.942 0.7338 0.8729 91.22 0.8569 0.924 94.308 0.9214 0.9629 96.91 X₁ 0 1 Y₁ 0 1 A superheated vapor of acetone and isopropanol with mole fractions y₁=0.36 and y2=0.64 is initially at 35 kPa pressure. What pressure must you increase this gas mixture to before it starts to condense? (Hint: you can approximate this simply on the plot). Draw the path between initial conditions, and final conditions (the dew pressure) on the plot.
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:The diagram illustrates VLE (vapor-liquid equilibrium) data from the Dortmund data bank for a binary mixture of acetone (1) and isopropanol (2) at a constant temperature of 328.15 K. The plot displays pressure (kPa) versus mole fraction x1 (acetone).
**Graph Explanation:**
- **Axes:** The x-axis represents the mole fraction of acetone, x1, ranging from 0 to 1. The y-axis represents pressure in kPa, ranging from 25 to 95 kPa.
- **Curves:**
- The magenta curve represents the saturated vapor curve.
- The cyan curve represents the saturated liquid curve.
- Both curves intersect the y-axis, starting near 30.30 kPa.
**Data Table:**
The table on the right provides numerical values for pressure (P), mole fraction in the liquid phase (x1), and mole fraction in the vapor phase (y1).
| P (kPa) | x1 | y1 |
|---------|--------|--------|
| 30.30 | 0 | 0 |
| 34.393 | 0.0237 | 0.1166 |
| 39.93 | 0.0642 | 0.2777 |
| 44.208 | 0.0971 | 0.3625 |
| 52.026 | 0.1591 | 0.4762 |
| 59.05 | 0.2353 | 0.5722 |
| 60.848 | 0.2687 | 0.6024 |
| 69 | 0.3879 | 0.6995 |
| 71.177 | 0.4314 | 0.7284 |
| 75.068 | 0.5234 | 0.7655 |
| 80.287 | 0.6084 | 0.8098 |
| 85.038 | 0.7216 | 0.8617 |
| 85.942 | 0.7338 | 0.8729 |
| 91.22 | 0.8569 | 0.924 |
| 94.308 | 0.9214 | 0.9629 |
|
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