Chemical Biochemical And Engineering Thermodynamics 5th Edition Stanley I. Sandler - Solutions

Redo Problem 10.3-2 using Aspen Plus.Problem 10.3-2Estimate the dew point temperature and the composition of the coexisting liquid for the mixture in the previous problem at all pressures above 1 bar.
Redo Problem 10.3-12 using Aspen Plus.Problem 10.3-12The following vapor-liquid equilibrium data are available for the system carbon dioxide (1) + isobutane (2) at 273.15 K.a. Find the value of the binary interaction parameter in the Peng-Robinson equation of state with the van der Waals one-fluid
Redo Problem 10.3-8 using Aspen Plus.Problem 10.3-8Vapor-liquid equilibria in petroleum technology are usually expressed in terms of K factors Ki = yi/xi, where yi and xi are the mole fractions of species i in the vapor and liquid phases, respectively. Estimate the K values for methane and benzene
Redo Problem 10.3-9 using Aspen Plus.Problem 10.3-9In a petroleum refinery an equimolar stream containing propane and n-butane is fed to a flash separator operating at 40°C. Determine the pressure at which this separator should be operated so that an equal number of moles of liquid and vapor are
a. The osmotic coefficient of a solvent ∅S is defined by the relationwhere ∅S → 1 as xS → 1. Develop an expression relating the activity coefficient γS to the osmotic coefficient ∅S.b. Robinson and Wood report the following interpolated values for the osmotic coefficient of seawater as a
Show that the condition for equilibrium in a closed isothermal system, one part of which is maintained at PI and the remainder at PII, is that the function G′ = U − TS + PI VI + PIIVII be a minimum (here VI and VII are the volumes of the portions of the system maintained at PI and PII,
A mixture of methane (40 mol %), propane (20 mol %) and n-hexane (40 mol %) at 70°C and 10 bar is adiabatically flashed to 1 bar. Determine the temperature of streams exiting the valve, the relative amounts of the vapor and liquid, and the compositions of each.
Bruno and coworkers [Int. J. Thermophys., 7, 1033 (1986)] describe an apparatus that contains a palladium-silver membrane that is permeable to hydrogen but not other gases. In their experiments after equilibration they measure the temperature T1 in the apparatus, the pressure P1 of pure hydrogen on
Derive a form of the Gibbs phase rule that applies to osmotic equilibrium.
A rough rule of thumb in polymer solution theory is that a 4 molar aqueous polymer solution will have an osmotic pressure of approximately 100 bar. Is this rule of thumb in approximate agreement with Eq.11.5-5? II = RT V solvent -In(xsolvent) RT VSC solvent (1 - xsolvent) (11.5-5)
Joe Udel lives on the second floor of a house that is adjacent to a well of pure water, but city water comes out of his indoor plumbing. He would rather have pure well water. So he has developed the following scheme. He will mount a pipe from the well up the side of his building into a tank in the
The following data have been reported for the osmotic pressure of α-chymotrypsin in water at pH = 8.0 in an 0.01 M potassium sulfate solution at 25°C.Use these data to determine the molecular weight of α-chymotrypsin and the value of its osmotic second virial coefficient, B2, at these
Derive the form of the Gibbs phase rule that applies to a multicomponent system in osmotic equilibrium in which all but two of the components can pass through the membrane separating the two compartments.
The following data have been obtained by graduate student Ron Maurer for the solubility of a crystalline substance (which happens to be a protein, but that is irrelevant) that ionizes on dissolution as a function of the molality of the added salt MgCl2 a. Explain qualitatively why the solubility
Coca Cola has approximately 39 grams of fructose in 355 ml. Since the other (secret) ingredients in Coca Cola are present in small quantities, they can be neglected. Neglect the carbon dioxide in the soda (somebody left the cap off all night so there is no carbon dioxide left and the soda is flat).
An interesting question in marine biology is how some organisms can survive the pressures encountered in the deep ocean. A possible explanation is that these organisms contain higher concentrations of low molecular weight compounds (for example urea) in the deep sea than at the surface, and these
A new membrane premeable only to water is to be used for purifying water containing a pesticide. Your employer requests that you setup a demonstration consisting of an insulated rigid tank at 2°C divided equally in volume by a rigid membrane. She suggests that one side of the membrane should have
The osmotic pressure for a small molecule in aqueous solution has been found to be given by the following expression where 1 is the solvent and 2 is the small; molecule solute. Obtain expressions for the activity coefficients of the solvent and solute as a function of mole fraction. II = p _ pl
The more environmentally friendly refrigerants are made of hydrogen-containing compounds that have a short environmental lifetime. However, these compounds are also combustible. Therefore, one strategy is to design less flammable refrigerant mixtures by forming a ternary mixture of a flammable

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