Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it None of these Increases the activation energy Decreases the molecular collision diameter Decreases the energy barrier for reaction None of these Increases the activation energy Decreases the molecular collision diameter Decreases the energy barrier for reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases. Decreases Remains unaffected Increases Unpredictable from the data Decreases Remains unaffected Increases Unpredictable from the data ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The half life period of a first order reaction is given by (where, K = rate constant. ) 6.93 K 2.5 K 0.693/K 1.5 K 6.93 K 2.5 K 0.693/K 1.5 K 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. 12 8 16 4 12 8 16 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ? 1/2 1/3 3 1/9 1/2 1/3 3 1/9 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Most important characteristics of gas-liquid reactors are the None of these Both A and B Specific inter-facial area Liquid hold-up None of these Both A and B Specific inter-facial area Liquid hold-up ANSWER DOWNLOAD EXAMIANS APP
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