Fundamentals Of Chemical Engineering Thermodynamics
1st Edition
ISBN: 9781111580711
Author: Kevin D. Dahm, Donald P. Visco, Jr.
Publisher: CENGAGE L
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Question
Chapter 9.8, Problem 21P
A)
Interpretation Introduction
Interpretation:
Plot as a function of composition any excess property.
Concept introduction:
The non-ideal behavior of a system is quantified by the excess properties. The excess properties are the deviation between the properties in a real mixture to that of an ideal solution. Some examples of excess properties are volume, enthalpy and internal energy.
B)
Interpretation Introduction
Interpretation:
To establish a functional description for the excess property.
Concept introduction:
The non-ideal behavior of a system is quantified by the excess properties. The excess properties are the deviation between the properties in a real mixture to that of an ideal solution. Some examples of excess properties are volume, enthalpy and internal energy.
C)
Interpretation Introduction
Interpretation:
Plot as a function of composition the molar property which is partial.
Concept introduction:
The change in the properties of the system with respect to the changes in composition of the system at constant pressure and temperature is indicated by the partial molar properties. They are the partial derivatives of an extensive property with respect to the concentration of the component.
D)
Interpretation Introduction
Interpretation:
Explain whether the system is ideal or not.
Concept introduction:
The ideal solution is analogous to an ideal gas mixture. They obey Raoult’s law and their activity coefficient is one. The enthalpy of mixing is also zero.
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Do question 9 please! Question 7 Is just there for reference!!
7) You are tasked with separating two proteins by ion exchange chromatography on a 30 cm long
column with an inner diameter of 2 cm. The resin has a diameter of 100 μm and a void fraction
of 0.3, and your mobile phase flows through the column at a rate of Q = 5 cm³/min. The Van
Deemter coefficients A, B, and C have been determined to be 0.0228 cm, 0.0036 cm²/min, and
0.00053 min, respectively, for both proteins. Protein A elutes from the column with an average
retention time of 27 min and standard deviation of 0.8 min. Protein B elutes from the column.
with an average retention time of 33.8 min and standard deviation of 1.0.
a) How many theoretical plates does the column contain?
b) What flow rate (Q) will give you the maximum resolution?
c) What is the minimum height of a theoretical plate for the system?
4) A fixed bed adsorption unit contains rigid (incompressible) silica particles with a diameter of
120 um and porosity of 0.3. The resin bed is 200 cm long and has a diameter of 15 cm. A protein
solution is pumped into the column at a rate of 50 L/min, and the mobile phase has a viscosity of
1.2 CP.
a) What is the pressure drop for this system (in bar)?
b) What would be the pressure drop if the particle diameter were decreased to 30 μm?
Chapter 9 Solutions
Fundamentals Of Chemical Engineering Thermodynamics
Ch. 9.7 - Prob. 1ECh. 9.7 - Prob. 2ECh. 9.7 - Prob. 3ECh. 9.7 - Prob. 4ECh. 9.7 - Prob. 5ECh. 9.7 - Prob. 6ECh. 9.7 - Prob. 7ECh. 9.7 - Prob. 8ECh. 9.7 - Prob. 9ECh. 9.7 - Prob. 10E
Ch. 9.7 - Experimental data is available that shows the...Ch. 9.8 - Prob. 12PCh. 9.8 - Prob. 13PCh. 9.8 - Prob. 14PCh. 9.8 - Prob. 15PCh. 9.8 - Prob. 16PCh. 9.8 - Prob. 17PCh. 9.8 - The molar volume for a mixture of methanol (1) +...Ch. 9.8 - Consider the following three liquid mixtures. A....Ch. 9.8 - Prob. 20PCh. 9.8 - Prob. 21PCh. 9.8 - Prob. 22PCh. 9.8 - Prob. 23PCh. 9.8 - Estimate the partial molar enthalpy of sulfuric...Ch. 9.8 - You have 100 grams of water at 25C in a container...Ch. 9.8 - Prob. 26PCh. 9.8 - Prob. 27PCh. 9.8 - Prob. 28PCh. 9.8 - Experimental data for the excess molar volume of...
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