3. The heat-of-mixing data of Featherstone and Dickinson [J. Chem. Thermodyn., 9 75 (1977)] for the n-octanol + n-decane liquid mixture at atmospheric pressure is approximately fit by where A = -12974 +51.505T and AmixH = x₁x₂ (A + B(x₁ - x₂)) B = 8782.834.129T (in J mol-¹) with T having units of K and x₁ being the n-octanol mole fraction. a) Compute the difference between the partial molar and pure-component enthalpies of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is, calculate H₁-H₁. Note b) Compute the difference between the partial molar and pure-component heat capacities of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is, calculate Cp,i - Cp,i- Cp = (24/7) P,Nj
3. The heat-of-mixing data of Featherstone and Dickinson [J. Chem. Thermodyn., 9 75 (1977)] for the n-octanol + n-decane liquid mixture at atmospheric pressure is approximately fit by where A = -12974 +51.505T and AmixH = x₁x₂ (A + B(x₁ - x₂)) B = 8782.834.129T (in J mol-¹) with T having units of K and x₁ being the n-octanol mole fraction. a) Compute the difference between the partial molar and pure-component enthalpies of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is, calculate H₁-H₁. Note b) Compute the difference between the partial molar and pure-component heat capacities of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is, calculate Cp,i - Cp,i- Cp = (24/7) P,Nj
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:(a) H₁ - H₁ = 255.4 J/mol
H₂-H₂ = 983.4 J/mol
2
(b) (C₁,₁ - CP₁1) | x,-0.8 - 4,344 J/mol K
X₁=0.5
(C₁,₁ - CP₁2) | x,₁00.5 = 21.41 J/mol K
(c)
Q = 259 J/mol solution
![3. The heat-of-mixing data of Featherstone and Dickinson [J. Chem. Thermodyn., 9,
75 (1977)] for the n-octanol + n-decane liquid mixture at atmospheric pressure is
approximately fit by
Amix H = x₁x₂ (A + B(x₁ − x₂))
where A = -12974 +51.505T
and
B = 8782.8 34.129T
with T having units of K and x₁ being the n-octanol mole fraction.
a) Compute the difference between the partial molar and pure-component
enthalpies of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is,
calculate H₁-H₁.
b) Compute the difference between the partial molar and pure-component heat
capacities of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is,
calculate Cpi - Cp,i-
Note
and
Cp
Cpi
= (3/1) p
P,Nj
=
-(077)
(in J mol-¹)
P,Nj](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F43d70dae-8cee-4824-b94a-870f22e2e7bd%2F2531a4b1-09b9-4af4-a019-899d23421705%2F40n4tdr_processed.png&w=3840&q=75)
Transcribed Image Text:3. The heat-of-mixing data of Featherstone and Dickinson [J. Chem. Thermodyn., 9,
75 (1977)] for the n-octanol + n-decane liquid mixture at atmospheric pressure is
approximately fit by
Amix H = x₁x₂ (A + B(x₁ − x₂))
where A = -12974 +51.505T
and
B = 8782.8 34.129T
with T having units of K and x₁ being the n-octanol mole fraction.
a) Compute the difference between the partial molar and pure-component
enthalpies of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is,
calculate H₁-H₁.
b) Compute the difference between the partial molar and pure-component heat
capacities of n-octanol and of n-decane at x₁ = 0.50 and T = 300.0 K. That is,
calculate Cpi - Cp,i-
Note
and
Cp
Cpi
= (3/1) p
P,Nj
=
-(077)
(in J mol-¹)
P,Nj
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