Chemical Reaction Engineering The equilibrium constant of chemical reaction __________ in the presence of catalyst. Decreases Can either increase or decrease (depends on the type of catalyst) Increases Remains unaffected Decreases Can either increase or decrease (depends on the type of catalyst) Increases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit All of these Does not initiate the reaction Reduces the value of equilibrium constant Retards the rate of reaction All of these Does not initiate the reaction Reduces the value of equilibrium constant Retards the rate of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The space time is equivalent to the holding time in a steady state mixed reactor for Non-isothermal gas reaction Constant fluid density systems Gas reactions with changing no. of moles Variable fluid density systems Non-isothermal gas reaction Constant fluid density systems Gas reactions with changing no. of moles Variable fluid density systems ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Velocity of a reaction depends upon the Temperature at which the reaction is carried Nature of the reactants Concentration of the reactants All of these Temperature at which the reaction is carried Nature of the reactants Concentration of the reactants All of these 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fluidised bed reactor is characterised by Absence of continuous catalyst regeneration facility Very small pressure drop Uniformity of temperature Comparatively smaller equipment Absence of continuous catalyst regeneration facility Very small pressure drop Uniformity of temperature Comparatively smaller equipment ANSWER DOWNLOAD EXAMIANS APP
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