Chemical Reaction Engineering The reactions of high molecularity are rare, because Of very large activation energy of many bodies Many body collisions are not favoured energetically Of low probability of many body collisions Of requirement of very large concentration for such reactions Of very large activation energy of many bodies Many body collisions are not favoured energetically Of low probability of many body collisions Of requirement of very large concentration for such reactions 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/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 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the equilibrium __________ rises in case of endothermic reaction. Conversion Constant Both A & B Neither A nor B Conversion Constant Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The enzyme which can catalyse the conversion of glucose to ethyl alcohol is Diastase Invertase Maltase Zymase Diastase Invertase Maltase Zymase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst is a substance, which __________ chemical reaction. Decreases the speed of a Can either increase or decrease the speed of a Increases the speed of a Alters the value of equilibrium constant in a reversible Decreases the speed of a Can either increase or decrease the speed of a Increases the speed of a Alters the value of equilibrium constant in a reversible ANSWER DOWNLOAD EXAMIANS APP
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