Chemical Reaction Engineering A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be 2τ τ/0.693 0.5τ 0.693τ 2τ τ/0.693 0.5τ 0.693τ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a continuous flow stirred tank reactor, the composition of the exit stream Is same as that in the reactor Is different than that in the reactor None of these Depends upon the flow rate of inlet stream Is same as that in the reactor Is different than that in the reactor None of these Depends upon the flow rate of inlet stream ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the rate constant obeying Arhenious equation Can either increase or decrease ; depends on the frequency factor Decreases exponentially Increases Decreases Can either increase or decrease ; depends on the frequency factor Decreases exponentially Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a first order reaction depends on the Concentration of the reactant Concentration of the product Time Temperature Concentration of the reactant Concentration of the product Time Temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In autocatalytic reactions, One of the products acts as a catalyst One of the reactants acts as a catalyst No catalyst is used Catalysts have very high selectivity One of the products acts as a catalyst One of the reactants acts as a catalyst No catalyst is used Catalysts have very high selectivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Either A or B; depends on the type of catalyst Decreases Increases Neither A nor B Either A or B; depends on the type of catalyst Decreases Increases Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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