Introduction to Chemical Engineering Thermodynamics
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: McGraw-Hill Education
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Chapter 13, Problem 13.76P
Interpretation Introduction

Interpretation:

The Px1y1 diagram is to be generated for the given systems at 100C using two procedures, (i) Modified Raoult’s law, and (ii) gamma/phi approach.

Concept Introduction:

Equation used for Gamma/Phi formulation for VLE is:

  yiΦiP=xiγiPisat .......(1)

Here, Φi

for a binary system is:

  Φi= φ ^ivφi satΦi=exp[ P r T ri ( B i 0 + ω i B i 1 )]exp[ P ri sat T ri ( B i 0 + ω i B i 1 )]Φi=exp[( P ri P ri sat ) T ri( B i 0+ ω i B i 1)]                                                                             ...... (2)

And,

  Bi0=0.0830.422T ri 1.6Bi1=0.1390.172T ri 4.2 .......(3)

Reduced pressure and temperature are calculated by:

  Pr=PPc                                                                                                                          ...... (4)Tr=TTc                                                                                                                          ...... (5)

Here, Pc and Tc are the critical pressure and temperature respectively.

Equation to be used for Modified Raoult’s law is:

  yiP=xiγiPisat .......(6)

Wilson equations to be used are:

  lnγ1=ln(x1+x2Λ 12)+x2( Λ 12 x 1 + x 2 Λ 12 Λ 21 x 2 + x 1 Λ 21 )lnγ2=ln(x2+x1Λ 21)+x1( Λ 12 x 1 + x 2 Λ 12 Λ 21 x 2 + x 1 Λ 21 ) .......(7)

Antoine equation is used to determine the vapor pressure of any substance at the given temperature by the equation:

  lnPsat(kPa)=AB(TC)+C .......(8)

Here, A, B and C are the constants specific for a substance given in table B.2 of appendix B.

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Chapter 13 Solutions

Introduction to Chemical Engineering Thermodynamics

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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