Engineering, 06.04.2021 02:00 richiearieona1012
A platinum catalytic reactor in an automobile is used to convert carbon monoxide to carbon dioxide in an oxidation reaction of the form 2CO ϩ O 2 l 2CO 2 . Species transfer between the catalytic surface and the exhaust gases may be assumed to occur by diffusion in a film of thickness L ϭ 10 mm. Consider an exhaust gas that has a pressure of 1.2 bars, a temperature of 500 Њ C, and a CO mole fraction of 0.0012. If the reaction rate constant of the catalyst is k" = 0.005 m/s and the diffusion coefficient of CO in the mixture is 10-4 m/s, what is the molar concentration of CO at the catalytic surface? What is the rate of removal of CO per unit area of the catalyst? What is the removal rate if kis adjusted to render the process diffusion limited?
Answers: 2
Engineering, 04.07.2019 18:10, samanthabutryn
Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan
Answers: 3
Engineering, 04.07.2019 18:10, QueenLife4869
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Engineering, 04.07.2019 19:10, shunna33
Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?
Answers: 2
A platinum catalytic reactor in an automobile is used to convert carbon monoxide to carbon dioxide i...
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