Chemical Reaction Engineering Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? Film diffusion Chemical reaction Pore diffusion Ash layer diffusion Film diffusion Chemical reaction Pore diffusion Ash layer diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure? Langmuir adsorption isotherm Freundlich adsorption isotherm Adsorption isobar None of these Langmuir adsorption isotherm Freundlich adsorption isotherm Adsorption isobar None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If 'n' is the order of reaction, then unit of rate constant is (time)-1 (concentration)n - 1 1/(time)(concentration)n - 1 (time)n - 1 (concentration) None of these (time)-1 (concentration)n - 1 1/(time)(concentration)n - 1 (time)n - 1 (concentration) None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Promoter is added to the catalyst to improve its Surface area Porosity Sensitivity None of these Surface area Porosity Sensitivity None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the Reaction may be elementary with molecularity of 2 Reaction is elementary but the molecularity may not be 2 Molecularity of the reaction is 2, but the reaction may not be elementary Reaction is elementary with a molecularity of 2 Reaction may be elementary with molecularity of 2 Reaction is elementary but the molecularity may not be 2 Molecularity of the reaction is 2, but the reaction may not be elementary Reaction is elementary with a molecularity of 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is used for calcination of limestone and dolomite in industrial practice? Fluidised bed reactor None of these Moving bed reactor Fixed bed reactor Fluidised bed reactor None of these Moving bed reactor Fixed bed reactor ANSWER DOWNLOAD EXAMIANS APP
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