A service attendant accidently spills 50 litres of gasoline, which quickly spreads over a level surface of area 8 m². Estimate the time required for the gasoline to evaporate into the stagnant air above the surface of the liquid. The diffusivity of gasoline in air is 0.65 m² h-'. The air temperature is 298 K. Evaporation may be assumed to take place through a film of air of 2 m thickness. Vapour pressure of gasoline at 298 K is 76 mm Hg. The density of gasoline is 720 kg m³ and the molecular weight of gasoline is 200. The operation takes place at 1 atm pressure.
A service attendant accidently spills 50 litres of gasoline, which quickly spreads over a level surface of area 8 m². Estimate the time required for the gasoline to evaporate into the stagnant air above the surface of the liquid. The diffusivity of gasoline in air is 0.65 m² h-'. The air temperature is 298 K. Evaporation may be assumed to take place through a film of air of 2 m thickness. Vapour pressure of gasoline at 298 K is 76 mm Hg. The density of gasoline is 720 kg m³ and the molecular weight of gasoline is 200. The operation takes place at 1 atm pressure.
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:A service attendant accidently spills 50 litres of gasoline, which quickly spreads
over a level surface of area 8 m?. Estimate the time required for the gasoline to
evaporate into the stagnant air above the surface of the liquid. The diffusivity
of gasoline in air is 0.65 m² h-'. The air temperature is 298 K. Evaporation may
be assumed to take place through a film of air of 2 m thickness. Vapour pressure
of gasoline at 298 K is 76 mm Hg. The density of gasoline is 720 kg m³ and
the molecular weight of gasoline is 200. The operation takes place at 1 atm
pressure.
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