Chemical Reaction Engineering BET apparatus is used to determine the Specific surface of a porous catalyst Pore diameter Porosity of the catalyst bed Pore size distribution Specific surface of a porous catalyst Pore diameter Porosity of the catalyst bed Pore size distribution ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction All of these Increases the frequency of collisions of reacting species Decreases the activation energy Alters the reaction mechanism All of these Increases the frequency of collisions of reacting species Decreases the activation energy Alters the reaction mechanism ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The catalyst in a second order reversible reaction increases the rate of the forward reaction And decreases that of backward reaction To a greater extent than that of the backward reaction And backward reaction equally Only And decreases that of backward reaction To a greater extent than that of the backward reaction And backward reaction equally Only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering "A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?A. Inner catalyst core of radius R/8 does not participate in reaction." Inner catalyst core of radius R/8 does not participate in reaction Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 Inner catalyst core of radius 7R/8 does not participate in reaction Inner catalyst core of radius R/2 does not participate in reaction Inner catalyst core of radius R/8 does not participate in reaction Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 Inner catalyst core of radius 7R/8 does not participate in reaction Inner catalyst core of radius R/2 does not participate in reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst promoter Improves the activity of a catalyst Itself has very high activity Acts as a catalyst support All of these Improves the activity of a catalyst Itself has very high activity Acts as a catalyst support All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction. Photochemical Autocatalytic Catalytic None of these Photochemical Autocatalytic Catalytic None of these ANSWER DOWNLOAD EXAMIANS APP
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