Chemical Reaction Engineering Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. Much lower Much higher Lower Higher Much lower Much higher Lower Higher ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal P.F.R. at steady state conditions The composition of reactants remains constant along a flow path There may be diffusion along the flow path The conversion of the reactant varies from point to point along a flow path There is no lateral mixing of fluid The composition of reactants remains constant along a flow path There may be diffusion along the flow path The conversion of the reactant varies from point to point along a flow path There is no lateral mixing of fluid 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. 8 16 4 12 8 16 4 12 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 2.5 2.24 2 1.6 2.5 2.24 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Free energy of activation is lower Initial concentration of the reactants remains constant Free energy of activation is higher Entropy changes Free energy of activation is lower Initial concentration of the reactants remains constant Free energy of activation is higher Entropy changes ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the most suitable for very high pressure gas phase reaction? Fluidised bed reactor Tubular flow reactor Stirred tank reactor Batch reactor Fluidised bed reactor Tubular flow reactor Stirred tank reactor Batch reactor ANSWER DOWNLOAD EXAMIANS APP
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