The decomposition of compound “X" was observed over a period of 30 hours and the results were recorded in the table below. What is the order of this decomposition reaction? Hint: You can make this easy by just looking at what happens to the half-life during the course of the reaction. Time(hrs) % Reactant 0. 10 15 20 25 30 Present 100 % 75 % 50 % 37.5 % * 25% 18.8 % 12.5 % A) 0th order B) 1st order
The decomposition of compound “X" was observed over a period of 30 hours and the results were recorded in the table below. What is the order of this decomposition reaction? Hint: You can make this easy by just looking at what happens to the half-life during the course of the reaction. Time(hrs) % Reactant 0. 10 15 20 25 30 Present 100 % 75 % 50 % 37.5 % * 25% 18.8 % 12.5 % A) 0th order B) 1st order
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:5. The decomposition of compound "X" was observed over a period of 30 hours and the results were recorded
in the table below. What is the order of this decomposition reaction? Hint: You can make this easy by just
looking at what happens to the half-life during the course of the reaction.
Time(hrs)
% Reactant
10
15
20
25
30
Present
100 %
75%
50 %
37.5 %
25 %
18.8 %
12.5 %
A) 0th order
B) 1st order
C) 2nd order
D) 3rd order
E) 4th order
26. Carbon-14 is a radioactive isotope which decays with a half-life of 5730 years. What is the first-order rate
constant for its decay, in units of years-1?
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