Chemical Reaction Engineering The half life period of a first order reaction is given by (where, K = rate constant. ) 2.5 K 1.5 K 0.693/K 6.93 K 2.5 K 1.5 K 0.693/K 6.93 K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The order of a chemical reaction is None of these Never fractional Always equal to the total stoichiometric number of reactants An experimentally determined quantity None of these Never fractional Always equal to the total stoichiometric number of reactants An experimentally determined quantity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single CSTR of volume V PFR of volume V PFR of volume V/X CSTR of volume V/X CSTR of volume V PFR of volume V PFR of volume V/X CSTR of volume V/X ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst inhibitor All of these May be useful for suppressing undesirable side reactions Is added in small quantity during the catalyst manufacture itself Lessens its selectivity All of these May be useful for suppressing undesirable side reactions Is added in small quantity during the catalyst manufacture itself Lessens its selectivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The units of frequency factor in Arhenious equation Depend on temperature, pressure etc. of the reaction Are cycles per unit time Depend on the order of the reaction Are the same as those of the rate constant Depend on temperature, pressure etc. of the reaction Are cycles per unit time Depend on the order of the reaction Are the same as those of the rate constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 2 4 11 22 2 4 11 22 ANSWER DOWNLOAD EXAMIANS APP
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