Chemical Reaction Engineering A catalyst in a chemical reaction Alters the reaction mechanism All of these Decreases the activation energy Increases the frequency of collisions of reacting species Alters the reaction mechanism All of these Decreases the activation energy Increases the frequency of collisions of reacting species ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When a catalyst increases the rate of forward reaction, the value of rate constant Becomes infinite Decreases Remain same Increases Becomes infinite Decreases Remain same Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Fixed bed Tubular flow Stirred tank Batch Fixed bed Tubular flow Stirred tank Batch ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order reaction carried out in a plug flow reactor, the space time is 1/K In C/C0 K In C/C0 1/K In C0/C K In C0/C 1/K In C/C0 K In C/C0 1/K In C0/C K In C0/C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. Increase Decrease Either A or B, depends on the type of reaction No change Increase Decrease Either A or B, depends on the type of reaction No change ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes. 4 12 8 16 4 12 8 16 ANSWER DOWNLOAD EXAMIANS APP
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