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The activation energy of a chemical reaction is kind of like that "hump" you have to get over to get yourself out of bed. Even energy-releasing (exergonic) reactions require some amount of energy input to get going, before they can proceed with their energy-releasing steps. Bismuth is being used to disperse silicon at 1100°C for 20 minutes (Bi). So total quantity of Bi in the sample D= Do exp (-E/kT). and linear is 2 × 1015 Bi atoms/cm², and the diffusion length is 1 m. Use approximation. a.) How much Bi is there in total in the sample? b) What is the activation energy worth?

The activation energy of a chemical reaction is kind of like that "hump" you have to get over to get yourself out of bed. Even energy-releasing (exergonic) reactions require some amount of energy input to get going, before they can proceed with their energy-releasing steps. Bismuth is being used to disperse silicon at 1100°C for 20 minutes (Bi). So total quantity of Bi in the sample D= Do exp (-E/kT). and linear is 2 × 1015 Bi atoms/cm², and the diffusion length is 1 m. Use approximation. a.) How much Bi is there in total in the sample? b) What is the activation energy worth?

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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The activation energy of a chemical reaction is kind of like that "hump" you have to get over to get yourself out of bed. Even energy-releasing (exergonic) reactions require some amount of energy input to get going, before they can proceed with their energy-releasing steps. Bismuth is being used to disperse silicon at 1100°C for 20 minutes (Bi). So total quantity of Bi in the sample is 2 x 1015 Bi atoms/cm?, and the diffusion length is 1 m. Use D = Do exp ( – E,/kT). and linear approximation. a.) How much Bi is there in total in the sample? b) What is the activation energy worth?
Transcribed Image Text:The activation energy of a chemical reaction is kind of like that "hump" you have to get over to get yourself out of bed. Even energy-releasing (exergonic) reactions require some amount of energy input to get going, before they can proceed with their energy-releasing steps. Bismuth is being used to disperse silicon at 1100°C for 20 minutes (Bi). So total quantity of Bi in the sample is 2 x 1015 Bi atoms/cm?, and the diffusion length is 1 m. Use D = Do exp ( – E,/kT). and linear approximation. a.) How much Bi is there in total in the sample? b) What is the activation energy worth?
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