A first order reaction of the type is carried out: A ----> B And the reaction rate constant is 3.9 × 10–3 s-1. Determine the time when the concentration of reagent a will be 60% of the initial concentration.
A first order reaction of the type is carried out: A ----> B And the reaction rate constant is 3.9 × 10–3 s-1. Determine the time when the concentration of reagent a will be 60% of the initial concentration.
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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Question
A first order reaction of the type is carried out:
A ----> B
And the reaction rate constant is 3.9 × 10–3 s-1. Determine the time when the concentration of reagent a will be 60% of the initial concentration.
Expert Solution
Step 1
We can use the integrated form of the rate law to answer questions
Let’s Assume
[A]o = Initial Concentration
[A] = Final Concentration (which will be = 0.6 [A]o
k = 3.9 × 10–3 s-1
Putting the values in formula we have,
t =
t = 0.511 * 256.41
t = 130.98 sec
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