Ten thousand (10,000) kg-h-1 of an 80-wt-% H2SO4 solution in water at 300 K is continuously diluted with chilled water at 280 K to yield a stream containing 50-wt-% H2SO4 at 330 K. (a) What is the mass flow rate of chilled water in kg-h-1, (b) What is the rate of heat transfer in kJ-h-1 for the mixing process? Is heat added or removed?
Ten thousand (10,000) kg-h-1 of an 80-wt-% H2SO4 solution in water at 300 K is continuously diluted with chilled water at 280 K to yield a stream containing 50-wt-% H2SO4 at 330 K. (a) What is the mass flow rate of chilled water in kg-h-1, (b) What is the rate of heat transfer in kJ-h-1 for the mixing process? Is heat added or removed?
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:Heat of solution data is available in Fig. 11.4.
Figure 11.4: H-x diagram for H2SO4(1)/H2O(2). The basis for the diagram is H = 0 for the pure
species at 298.15 K.
300
200
100
350 K
b
a
-100
300 K
-200
-300
250K
-400
-500
20 30 40 50 60 70 80 90 100
Wt. % H,SO,
O 10
3D
3D
%3D
solution)1
H/kJ (kg
Transcribed Image Text:Ten thousand (10,000) kg-h-1 of an 80-wt-% H2SO4 solution in water at 300 K is continuously
diluted with chilled water at 280 K to yield a stream containing 50-wt-% H2SO4 at 330 K.
(a) What is the mass flow rate of chilled water in kg-h-1,
(b) What is the rate of heat transfer in kJ-h-1 for the mixing process? Is heat added or
removed?
(c) If the mixing occurred adiabatically, what would be the temperature of the product stream?
Assume here the same inlet conditions and the same product composition as for part (b).
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