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14) The gas-phase catalytic reaction A + B + C is believed to have the following rate law. -r= k (KB PAPB - KCPC) Ks 1+ KBPB+ KCPC Propose a mechanism and rate limiting step that are consistent with the rate law above. Note: for full credit, you must prove that the mechanism and rate limiting step match the rate law. where did the negative come from? Molecular adsorption Mechanism: A*A* B+* B* Desorption this is written as an A*+B*→C+* YAD=KAM (PACK-CA*) VAD,B=KAB (PBC*- rs= Ks CA*CB* CB KB sts. adsorption

14) The gas-phase catalytic reaction A + B + C is believed to have the following rate law. -r= k (KB PAPB - KCPC) Ks 1+ KBPB+ KCPC Propose a mechanism and rate limiting step that are consistent with the rate law above. Note: for full credit, you must prove that the mechanism and rate limiting step match the rate law. where did the negative come from? Molecular adsorption Mechanism: A*A* B+* B* Desorption this is written as an A*+B*→C+* YAD=KAM (PACK-CA*) VAD,B=KAB (PBC*- rs= Ks CA*CB* CB KB sts. adsorption

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
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14) The gas-phase catalytic reaction A + B + C is believed to have the following rate law. -r= k (KB PAPB - KCPC) Ks 1+ KBPB+ KCPC Propose a mechanism and rate limiting step that are consistent with the rate law above. Note: for full credit, you must prove that the mechanism and rate limiting step match the rate law. where did the negative come from? Molecular adsorption Mechanism: A*A* B+* B* Desorption this is written as an A*+B*→C+* YAD=KAM (PACK-CA*) VAD,B=KAB (PBC*- rs= Ks CA*CB* CB KB sts. adsorption
Transcribed Image Text:14) The gas-phase catalytic reaction A + B + C is believed to have the following rate law. -r= k (KB PAPB - KCPC) Ks 1+ KBPB+ KCPC Propose a mechanism and rate limiting step that are consistent with the rate law above. Note: for full credit, you must prove that the mechanism and rate limiting step match the rate law. where did the negative come from? Molecular adsorption Mechanism: A*A* B+* B* Desorption this is written as an A*+B*→C+* YAD=KAM (PACK-CA*) VAD,B=KAB (PBC*- rs= Ks CA*CB* CB KB sts. adsorption
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