a) What can you hypothesise from the reaction rate law about the reaction mechanism? Provide detailed justifications for your hypotheses. b) What would the reaction rate law look like if you considered that ethylene and hydrogen chloride adsorbed on the catalyst, while oxygen participated from the gas phase? Justify in detail your answers by developing the relevant rate laws.
a) What can you hypothesise from the reaction rate law about the reaction mechanism? Provide detailed justifications for your hypotheses. b) What would the reaction rate law look like if you considered that ethylene and hydrogen chloride adsorbed on the catalyst, while oxygen participated from the gas phase? Justify in detail your answers by developing the relevant rate laws.
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
Related questions
Question
a) What can you hypothesise from the reaction rate law about the reaction
b) What would the reaction rate law look like if you considered that ethylene and
hydrogen chloride adsorbed on the catalyst, while oxygen participated from the gas
phase? Justify in detail your answers by developing the relevant rate laws.
![For Q1, Q2, Q3, the gas phase reaction considered is
A + 2B + 1/2CD + E
The reaction takes place in a heterogeneous, supported catalyst with reaction rate law
given by
where
C2H4 + 2HCI + 1/2O2 → C2H4Cl2 + H₂O
-TA
1. Reaction kinetics
kr.CA
1+ KaCA
TA: reaction rate of ethylene based on the volume of catalyst, mol s-¹ m-³
kr: reaction rate constant
with pre-exponential factor A = 300 s-1
and activation energy Ea= 33 kJ mol-1
Ka: adsorption equilibrium constant = 0.6 m³ mol-1
CA: concentration of ethylene in gas phase, mol m-³
a) What can you hypothesise from the reaction rate law about the reaction
mechanism? Provide detailed justifications for your hypotheses.
[3]
b) What would the reaction rate law look like if you considered that ethylene and
hydrogen chloride adsorbed on the catalyst, while oxygen participated from the gas
phase? Justify in detail your answers by developing the relevant rate laws.
[7]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2bbd4090-d987-4884-8631-9a79ed0fe791%2F7d535cbe-d2f8-4a72-9690-504040eecd5f%2Fstgzq3_processed.png&w=3840&q=75)
Transcribed Image Text:For Q1, Q2, Q3, the gas phase reaction considered is
A + 2B + 1/2CD + E
The reaction takes place in a heterogeneous, supported catalyst with reaction rate law
given by
where
C2H4 + 2HCI + 1/2O2 → C2H4Cl2 + H₂O
-TA
1. Reaction kinetics
kr.CA
1+ KaCA
TA: reaction rate of ethylene based on the volume of catalyst, mol s-¹ m-³
kr: reaction rate constant
with pre-exponential factor A = 300 s-1
and activation energy Ea= 33 kJ mol-1
Ka: adsorption equilibrium constant = 0.6 m³ mol-1
CA: concentration of ethylene in gas phase, mol m-³
a) What can you hypothesise from the reaction rate law about the reaction
mechanism? Provide detailed justifications for your hypotheses.
[3]
b) What would the reaction rate law look like if you considered that ethylene and
hydrogen chloride adsorbed on the catalyst, while oxygen participated from the gas
phase? Justify in detail your answers by developing the relevant rate laws.
[7]
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