Chemical Reaction Engineering For a tubular flow reactor with uniform concentration and temperature, the independent variable is Time Length Diameter None of these Time Length Diameter None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Desorption of C Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Desorption of C Surface reaction between A in the gas phase and absorbed B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst promoter All of these Acts as a catalyst support Improves the activity of a catalyst Itself has very high activity All of these Acts as a catalyst support Improves the activity of a catalyst Itself has very high activity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Proteinous in nature Prohibitively costly Active at cryogenic temperatures only Active at very high temperature only Proteinous in nature Prohibitively costly Active at cryogenic temperatures only Active at very high temperature 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 first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ? Smaller reactor followed by larger one Large reactor followed by smaller one Either of the arrangement A or B will give the same yield Data insufficient, can Smaller reactor followed by larger one Large reactor followed by smaller one Either of the arrangement A or B will give the same yield Data insufficient, can ANSWER DOWNLOAD EXAMIANS APP
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