Bubble point pressure (T and x; are known): 1. Calculate vapor pressures of pure components from Antoine Equations. 2. Calculate the bubble point pressure using Equation 10 (P = E¡ x¿P?"aP). %3D vap. 3. Determine the composition of the vapor phase from Equation 5 (y¡P = x;P;"aP). Еxample 1: Estimate the bubble point pressure of a liquid mixture of 20 mol% n-butane (1), 25% n- pentane (2), 35% n-hexane (3), and 20% n-heptane (4) at 290K. Also calculate the composition of the first bubble of vapor.
Bubble point pressure (T and x; are known): 1. Calculate vapor pressures of pure components from Antoine Equations. 2. Calculate the bubble point pressure using Equation 10 (P = E¡ x¿P?"aP). %3D vap. 3. Determine the composition of the vapor phase from Equation 5 (y¡P = x;P;"aP). Еxample 1: Estimate the bubble point pressure of a liquid mixture of 20 mol% n-butane (1), 25% n- pentane (2), 35% n-hexane (3), and 20% n-heptane (4) at 290K. Also calculate the composition of the first bubble of vapor.
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:**Bubble Point Pressure (T and x<sub>i</sub> are known):**
1. Calculate vapor pressures of pure components from Antoine Equations.
2. Calculate the bubble point pressure using Equation 10 \((P = \sum x_i P_i^{\text{vap}})\).
3. Determine the composition of the vapor phase from Equation 5 \((y_iP = x_iP_i^{\text{vap}})\).
**Example 1:**
Estimate the bubble point pressure of a liquid mixture of 20 mol% n-butane (1), 25% n-pentane (2), 35% n-hexane (3), and 20% n-heptane (4) at 290K. Also calculate the composition of the first bubble of vapor.
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