Chemical Reaction Engineering With increase in initial concentration, the fractional conversion of a first order reaction in a given time Decreases Unpredictable Remains constant Increases Decreases Unpredictable Remains constant Increases 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." Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 Inner catalyst core of radius R/2 does not participate in reaction Inner catalyst core of radius R/8 does not participate in reaction Inner catalyst core of radius 7R/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 R/2 does not participate in reaction Inner catalyst core of radius R/8 does not participate in reaction Inner catalyst core of radius 7R/8 does not participate in reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Decreases Remains same Increases Increases linearly Decreases Remains same Increases Increases linearly ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a Single CSTR is the most suitable Both A and B Batch reactor is preferred over a single CSTR for high yield Tubular reactor is preferred over a single CSTR for high yield Single CSTR is the most suitable Both A and B Batch reactor is preferred over a single CSTR for high yield Tubular reactor is preferred over a single CSTR for high yield ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst. CO₂ He H₂ N₂ CO₂ He H₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption. Chemical Physical Neither A nor B Both A and B Chemical Physical Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
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