A piece of Al with a surface area of 2.5 m2 is anodized to produce a film of Al2O3 that is 23 mm (23x10-6 m) thick. (a) How many coulombs flow through the cell in this process (assume that the density of the Al2O3 layer is 3.97 g/cm3)? (b) If it takes 18 min to produce this film, what current must flow through the cell?
A piece of Al with a surface area of 2.5 m2 is anodized to produce a film of Al2O3 that is 23 mm (23x10-6 m) thick. (a) How many coulombs flow through the cell in this process (assume that the density of the Al2O3 layer is 3.97 g/cm3)? (b) If it takes 18 min to produce this film, what current must flow through the cell?
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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A piece of Al with a surface area of 2.5 m2 is anodized to
produce a film of Al2O3 that is 23 mm (23x10-6 m) thick.
(a) How many coulombs flow through the cell in this process (assume that
the density of the Al2O3 layer is 3.97 g/cm3)?
(b) If it takes 18 min to produce this film, what current must flow through the cell?
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