Rate of drop in water level during evaporation.Air at 25oC and a dew-point temperature of 0oC flows past the open end of a vertical tube filled with water at 25oC. The tube has an inside diameter of 0.83 inch, and the liquid level is 0.5 inch below the top of the tube. The diffusivity of water in air at 25oC is 0.256 cm2/s.(a) How long will it take for the liquid level in the tube to drop 3 inches?(b) Plot the tube liquid level as a function of time for this period.
Rate of drop in water level during evaporation.Air at 25oC and a dew-point temperature of 0oC flows past the open end of a vertical tube filled with water at 25oC. The tube has an inside diameter of 0.83 inch, and the liquid level is 0.5 inch below the top of the tube. The diffusivity of water in air at 25oC is 0.256 cm2/s.(a) How long will it take for the liquid level in the tube to drop 3 inches?(b) Plot the tube liquid level as a function of time for this period.
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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Rate of drop in water level during evaporation.
Air at 25oC and a dew-point temperature of 0oC flows past the open end of a vertical tube filled with water at 25oC. The tube has an inside diameter of 0.83 inch, and the liquid level is 0.5 inch below the top of the tube. The diffusivity of water in air at 25oC is 0.256 cm2/s.
(a) How long will it take for the liquid level in the tube to drop 3 inches?
(b) Plot the tube liquid level as a function of time for this period.
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