Chemical Reaction Engineering The concentration of A in a first order reaction, A → B, decreases Logarithmically with time Very abruptly towards the end of the reaction Linearly with time Exponentially with time Logarithmically with time Very abruptly towards the end of the reaction Linearly with time Exponentially with time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space velocity Is a measure of the ease of the reaction Is the maximum feed rate pre unit volume of reactor for a given conversion Describes the extensive operating characteristics of a tubular flow reactor All of these Is a measure of the ease of the reaction Is the maximum feed rate pre unit volume of reactor for a given conversion Describes the extensive operating characteristics of a tubular flow reactor All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Remains unchanged Unpredictable from the data Increases Decreases Remains unchanged Unpredictable from the data Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Batch process is preferred over continuous process, when the All of these Sales demand of product is not steady Same equipment can not be used for several processes of the same nature Product yields and quality can not be achieved in continuous process, because of long residence time All of these Sales demand of product is not steady Same equipment can not be used for several processes of the same nature Product yields and quality can not be achieved in continuous process, because of long residence time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From among the following, choose one which is not an exothermic process. Ammonia synthesis Catalytic cracking Oxidation of sulphur Methanol synthesis Ammonia synthesis Catalytic cracking Oxidation of sulphur Methanol synthesis ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 1.6 2 2.5 2.24 1.6 2 2.5 2.24 ANSWER DOWNLOAD EXAMIANS APP
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