Q5/ A single-effect evaporator concentrates a 20wt% aqueous solution of H₂SO4 to 70%. The feed rate is 25lbm/s, and the feed temperature is 80°F. The evaporator is maintained at an absolute pressure of 1.5psia, at which pressure the boiling point of 70% H₂SO4 is 217°F. What is the heat transfer rate in the evaporator? (Enthalpy of steam at 1.5psia and 217°F is 1157.7 BTU/lb).
Q5/ A single-effect evaporator concentrates a 20wt% aqueous solution of H₂SO4 to 70%. The feed rate is 25lbm/s, and the feed temperature is 80°F. The evaporator is maintained at an absolute pressure of 1.5psia, at which pressure the boiling point of 70% H₂SO4 is 217°F. What is the heat transfer rate in the evaporator? (Enthalpy of steam at 1.5psia and 217°F is 1157.7 BTU/lb).
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:Q5/ A single-effect evaporator concentrates a 20wt% aqueous solution of H₂SO4 to 70%.
The feed rate is 25lbm/s, and the feed temperature is 80°F. The evaporator is maintained at
an absolute pressure of 1.5psia, at which pressure the boiling point of 70% H₂SO4 is 217°F.
What is the heat transfer rate in the evaporator? (Enthalpy of steam at 1.5psia and 217°F is
1157.7 BTU/lb).
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