EBK INTRODUCTION TO CHEMICAL ENGINEERIN
EBK INTRODUCTION TO CHEMICAL ENGINEERIN
8th Edition
ISBN: 9781259878091
Author: SMITH
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 13, Problem 13.40P

Following are VLE data for the system acetonitrile(1)/benzene(2) at 45°C

Chapter 13, Problem 13.40P, Following are VLE data for the system acetonitrile(1)/benzene(2) at 45°C The data are well , example  1

The data are well correlated by the three-parameter Margules equation (see Prob. 13.37).

  1. Basing calculations on Eq. (13.24), Find the values of parameters A12, A21, and C that provide the best fit of GE/RT to the data.
  2. Prepare a plot of In γ 1 , In γ 2 , and G E / x 1 x 2 R T vs. x 1 showing both the correlation and experimental values.
  3. Prepare a Pxy diagram [see Fig. 13.8(a)] that compares the experimental data with the correlation determined in (a).
  4. Prepare a consistency-test diagram like Fig. 13.9.
  5. Using Barker’s method, find the values of parameters A12, A21, and C that provide the best Fit of the P- x1data. Prepare a diagram showing the residuals δ P and δ y 1 plotted vs. x1.

13.37. VLE data for methyl tert-butyl ether(1)/dichloromethane(2) at 308.15 K are as follows:

Chapter 13, Problem 13.40P, Following are VLE data for the system acetonitrile(1)/benzene(2) at 45°C The data are well , example  2

Extracted from F. A. Mato, C. Bcrru. and A. Pcncloux, J. Cheni. Eng. Data. Vol. 36, pp. 259-262. 1991.

The data are well correlated by the three-parameter Margules equation [an extension of Eq. (13.39)]:

G E R T = A 21 x 1 + A 12 x 2 C x 1 x 2 x 1 x 2

Implied by this equation are the expressions:

I n γ 1 = x 2 2 A 12 + 2 A 21 A 12 C x 1 + 3 C x 1 2

I n γ 2 = x 1 2 A 12 + 2 A 12 A 21 C x 2 + 3 C x 2 2

  1. Basing calculations on Eq. (13.24), find the values of parameters Aj2, A2|. and C that provide the best fit of GE/RT to the data.
  2. Prepare a plot of In γ 1 In γ 2 , and G E / x 1 x 2 R T vs. x 1 showing both the correlation and experimental values.
  3. Prepare a Pxy diagram [see Fig. 13.8(a)] that compares the experimental data with the correlation determined in (a).
  4. Prepare a consistency-test diagram like Fig. 13.9.
  5. Using Barker’s method, find the values of parameters A12. A21, and C that provide the best fit of the P-x1data. Prepare a diagram showing the residuals δ P and δ y 1 plotted vs. x1

Chapter 13, Problem 13.40P, Following are VLE data for the system acetonitrile(1)/benzene(2) at 45°C The data are well , example  3

Chapter 13, Problem 13.40P, Following are VLE data for the system acetonitrile(1)/benzene(2) at 45°C The data are well , example  4

Figure 13.8: The diethyl ketone(l)/n-hexane(2) system at 65°C. (a) Pxy data and their correlations.

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Chapter 13 Solutions

EBK INTRODUCTION TO CHEMICAL ENGINEERIN

Ch. 13 - A binary mixture of mole fraction z1is flashed to...Ch. 13 - Humidity, relating to the quantity of moisture in...Ch. 13 - A concentrated binary solution containing mostly...Ch. 13 - Air, even more than carbon dioxide, is inexpensive...Ch. 13 - Helium-laced gases are used as breathing media for...Ch. 13 - A binary system of species 1 and 2 consists of...Ch. 13 - For the system ethyl ethanoate(l)/n-heptane(2) at...Ch. 13 - A liquid mixture of cyclohexanone(1)/phenol(2) for...Ch. 13 - A binary system of species 1 and 2 consists of...Ch. 13 - For the acetone(l)/methanol(2) system, a vapor...Ch. 13 - The following is a rule of thumb: For a binary...Ch. 13 - A process stream contains light species 1 and...Ch. 13 - If a system exhibits VLE, at least one of the...Ch. 13 - Flash calculations are simpler for binary systems...Ch. 13 - Prob. 13.25PCh. 13 - (a) A feed containing equimolar amounts of...Ch. 13 - A binary mixture of benzene(1) and toluene(2) is...Ch. 13 - Ten (10) kmolhr-1 of hydrogen sulfide gas is...Ch. 13 - Physiological studies show the neutral comfort...Ch. 13 - Prob. 13.30PCh. 13 - Prob. 13.31PCh. 13 - Prob. 13.32PCh. 13 - If Eq. (13.24) is valid for isothermal VLE in a...Ch. 13 - Prob. 13.34PCh. 13 - The excess Gibbs energy for binary systems...Ch. 13 - For the ethanol(l )/chloroform(2) system at 50°C,...Ch. 13 - VLE data for methyl tert-butyl...Ch. 13 - Prob. 13.38PCh. 13 - Prob. 13.39PCh. 13 - Following are VLE data for the system...Ch. 13 - Prob. 13.41PCh. 13 - Prob. 13.42PCh. 13 - Problems 13.43 through 13.54 require parameter...Ch. 13 - Problems 13.43 through 13.54 require parameter...Ch. 13 - Prob. 13.45PCh. 13 - Problems 13.43 through 13.54 require parameter...Ch. 13 - Prob. 13.47PCh. 13 - Prob. 13.48PCh. 13 - Prob. 13.49PCh. 13 - Prob. 13.50PCh. 13 - Problems 13.43 through 13.54 require parameter...Ch. 13 - Prob. 13.52PCh. 13 - The following expressions have been reported for...Ch. 13 - Possible correlating equations for In 1 in a...Ch. 13 - Prob. 13.57PCh. 13 - Binary VLE data are commonly measured at constant...Ch. 13 - Consider the following model for GE/RT of a binary...Ch. 13 - A breathalyzer measures volume-% ethanol in gases...Ch. 13 - Table 13.10 gives values of parameters for the...Ch. 13 - Prob. 13.62PCh. 13 - A single P-x1- y1data point is available for a...Ch. 13 - A single P- x1, data point is available for a...Ch. 13 - The excess Gibbs energy for the system...Ch. 13 - Prob. 13.66PCh. 13 - A system formed of methane(l) and a light oil(2)...Ch. 13 - Use Eq. (13.13) to reduce one of the following...Ch. 13 - For one of the following substances, determine...Ch. 13 - Departures from Raoult's law are primarily from...Ch. 13 - The relative volatility a12is commonly used in...Ch. 13 - Prob. 13.74PCh. 13 - Prob. 13.75PCh. 13 - Prob. 13.76P
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