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In an experimental determination of diffusivity of toluene in air, Stefan's method is being used. A vertical glass tube 3 mm in diameter is filled with liquid toluene to a depth of 20 mm from the top open end. After 275 hrs at 39.4°C and a total pressure of 1 atm., the level has dropped to 80 mm from the top. Neglecting counter diffusion of air to replace the liquid, estimate the diffusivity.

In an experimental determination of diffusivity of toluene in air, Stefan's method is being used. A vertical glass tube 3 mm in diameter is filled with liquid toluene to a depth of 20 mm from the top open end. After 275 hrs at 39.4°C and a total pressure of 1 atm., the level has dropped to 80 mm from the top. Neglecting counter diffusion of air to replace the liquid, estimate the diffusivity.

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
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Q-3 In an experimental determination of diffusivity of toluene in air, Stefan's method is being used. A vertical glass tube 3 mm in diameter is filled with liquid toluene to a depth of 20 mm from the top open end. After 275 hrs at 39.4°C and a total pressure the top. Neglecting counter diffusion of air to replace the liquid, estimate the diffusivity. 1 atm., the level has dropped to 80 mm from
Transcribed Image Text:Q-3 In an experimental determination of diffusivity of toluene in air, Stefan's method is being used. A vertical glass tube 3 mm in diameter is filled with liquid toluene to a depth of 20 mm from the top open end. After 275 hrs at 39.4°C and a total pressure the top. Neglecting counter diffusion of air to replace the liquid, estimate the diffusivity. 1 atm., the level has dropped to 80 mm from
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