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You want to know what effect convection will have on evaporation if you leave a petri dish of agar uncovered on the bench or in the fume hood (both at 293 K and 1.013 x 10°Pa, so you compare mass ransfer coefficients (kc) (How many times faster/slower?). Water evaporates from the exposed area into he still lab air at a rate of f 2 m/s at a rate of 2.29 x 104 mole/s (WA). 5.73 x 10-6 mole/s (WA). In the fume hood) it evaporates into an air stream

You want to know what effect convection will have on evaporation if you leave a petri dish of agar uncovered on the bench or in the fume hood (both at 293 K and 1.013 x 10°Pa, so you compare mass ransfer coefficients (kc) (How many times faster/slower?). Water evaporates from the exposed area into he still lab air at a rate of f 2 m/s at a rate of 2.29 x 104 mole/s (WA). 5.73 x 10-6 mole/s (WA). In the fume hood) it evaporates into an air stream

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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You want to know what effect convection will have on evaporation if you leave a petri dish of agar uncovered on the bench or in the fume hood (both at 293 K and 1.013 x 10°Pa, so you compare mass transfer coefficients (kc) (How many times faster/slower?). Water evaporates from the exposed area into the still lab air at a rate of of 2 m/s at a rate of 2.29 x 104 mole/s (WA). 5.73 x 10-6 mole/s (WA). In the fume hood) it evaporates into an air stream
Transcribed Image Text:You want to know what effect convection will have on evaporation if you leave a petri dish of agar uncovered on the bench or in the fume hood (both at 293 K and 1.013 x 10°Pa, so you compare mass transfer coefficients (kc) (How many times faster/slower?). Water evaporates from the exposed area into the still lab air at a rate of of 2 m/s at a rate of 2.29 x 104 mole/s (WA). 5.73 x 10-6 mole/s (WA). In the fume hood) it evaporates into an air stream
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