Calculuate H(1), H(2), H(3), and H(4).  Also, show the process path for each enthalpy

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
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Calculuate H(1), H(2), H(3), and H(4).  Also, show the process path for each enthalpy.  

*Elementary Principles of Chemic X +
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Partial Vaporization of a Mixture
An equimolar liquid mixture of benzene (B) and toluene (T) at 10°C is fed continuously to a vessel in which
the mixture is heated to 50°C. The liquid product is 40.0 mole% B, and the vapor product is 68.4 mole% B.
How much heat must be transferred to the mixture per g-mole of feed?
We start with a degree-of-freedom analysis:
mol, 10°C
0.500 mol B/mol
0.500 mol T/mol
Q Search
A
EVAPORATOR
QD
0000
ny(mol), 50°C
0.684 mol B/mol
0.316 mol T/mol
QU)
(mol), 50°C
0.400 mol B/mol
0.600 mol T/mol
3 unknown variables (ny, nL, Q)
-2 material balances
−1
-1 energy balance
= 0 degrees of freedom
We could count each specific enthalpy to be determined as an unknown variable, but then we would also
degrees of freedom unchanged.
count the equations for each of them in terms of heat capacities and latent heats, leaving the number of
Bal
Q 16
ENG
Transcribed Image Text:*Elementary Principles of Chemic X + ples%20of%20Chemical%20Processes,%204th%20Edition%20(%20PDFDrive%20).pdf | loud a - 8.4-4 cyclopedia Solution Basis: 1 mol Feed rator Ask Copilot + 450 of 695 vil hapy changes for the unce steps. college/felder Partial Vaporization of a Mixture An equimolar liquid mixture of benzene (B) and toluene (T) at 10°C is fed continuously to a vessel in which the mixture is heated to 50°C. The liquid product is 40.0 mole% B, and the vapor product is 68.4 mole% B. How much heat must be transferred to the mixture per g-mole of feed? We start with a degree-of-freedom analysis: mol, 10°C 0.500 mol B/mol 0.500 mol T/mol Q Search A EVAPORATOR QD 0000 ny(mol), 50°C 0.684 mol B/mol 0.316 mol T/mol QU) (mol), 50°C 0.400 mol B/mol 0.600 mol T/mol 3 unknown variables (ny, nL, Q) -2 material balances −1 -1 energy balance = 0 degrees of freedom We could count each specific enthalpy to be determined as an unknown variable, but then we would also degrees of freedom unchanged. count the equations for each of them in terms of heat capacities and latent heats, leaving the number of Bal Q 16 ENG
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