Benzoic acid is very useful in the personal care industry to prevent infection caused by bacteria. A flat thin of solid benzoic acid with a dimension of 1.0 m x 1.0 m is tested to determine the rate of moles lost from the surface. The benzoic acid was oriented parallel to a stream of air flowing at 35 m/s. The air temperature is 325 K with a pressure of 101.325 kPa. The benzoic acid remains at 315 K where at this temperature the vapor pressure of benzoic acid is 48 Pa. Estimate the moles of benzoic acid lost and gas coefficient, if the end effects can be ignored. Given the diffusivity is 0.125 cm2/s and gas constant are 8314 m³ Pa/kg mol K.
Benzoic acid is very useful in the personal care industry to prevent infection caused by bacteria. A flat thin of solid benzoic acid with a dimension of 1.0 m x 1.0 m is tested to determine the rate of moles lost from the surface. The benzoic acid was oriented parallel to a stream of air flowing at 35 m/s. The air temperature is 325 K with a pressure of 101.325 kPa. The benzoic acid remains at 315 K where at this temperature the vapor pressure of benzoic acid is 48 Pa. Estimate the moles of benzoic acid lost and gas coefficient, if the end effects can be ignored. Given the diffusivity is 0.125 cm2/s and gas constant are 8314 m³ Pa/kg mol K.
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:Benzoic acid is very useful in the personal care industry to prevent infection caused by
bacteria. A flat thin of solid benzoic acid with a dimension of 1.0 m x 1.0 m is tested to
determine the rate of moles lost from the surface. The benzoic acid was oriented parallel
to a stream of air flowing at 35 m/s. The air temperature is 325 K with a pressure of 101.325
kPa. The benzoic acid remains at 315 K where at this temperature the vapor pressure of
benzoic acid is 48 Pa. Estimate the moles of benzoic acid lost and gas coefficient, if the
end effects can be ignored.
Given the diffusivity is 0.125 cm2/s and gas constant are 8314 m³ Pa/kg mol K.
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