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I need help calculating enthalpies 1 through 4.

I need help calculating enthalpies 1 through 4.

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: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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I need help calculating enthalpies 1 through 4.  

||! Elementary Principles of Chemica X + 47°F Partly sunny File | E:/Elementary%20Principles%20of%20Chemical%20Processes,%204th%20Edition%20(%20PDF Drive%20).pdf Draw (T) Read aloud Example 8.4-4 Solution Equipment Encyclopedia evaporator www.wiley.com/college/felder + 450 of 695 individual enthalpy changes for the three steps. 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? Basis: 1 mol Feed 1 mol, 10°C 0.500 mol B/mol 0.500 mol T/mol We start with a degree-of-freedom analysis: Q Search CD EVAPORATOR H ny(mol), 50°C 0.684 mol B/mol 0.316 mol T/mol Q(J) n₁ (mol), 50°C 0.400 mol B/mol 0.600 mol T/mol 3 unknown variables (ny, nL, Q) -2 material balances -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 count the equations for each of them in terms of heat capacities and latent heats, leaving the number of degrees of freedom unchanged. < Ơ re 80 J ^ ENG Sign in 7:14 AM 5/6/2023 • la + O
Transcribed Image Text:||! Elementary Principles of Chemica X + 47°F Partly sunny File | E:/Elementary%20Principles%20of%20Chemical%20Processes,%204th%20Edition%20(%20PDF Drive%20).pdf Draw (T) Read aloud Example 8.4-4 Solution Equipment Encyclopedia evaporator www.wiley.com/college/felder + 450 of 695 individual enthalpy changes for the three steps. 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? Basis: 1 mol Feed 1 mol, 10°C 0.500 mol B/mol 0.500 mol T/mol We start with a degree-of-freedom analysis: Q Search CD EVAPORATOR H ny(mol), 50°C 0.684 mol B/mol 0.316 mol T/mol Q(J) n₁ (mol), 50°C 0.400 mol B/mol 0.600 mol T/mol 3 unknown variables (ny, nL, Q) -2 material balances -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 count the equations for each of them in terms of heat capacities and latent heats, leaving the number of degrees of freedom unchanged. < Ơ re 80 J ^ ENG Sign in 7:14 AM 5/6/2023 • la + O
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