Chemical Reaction Engineering Exothermic reactions are best carried out in A CSTR A plug flow reactor followed by CSTR CSTR in series CSTR followed by a plug flow reactor A CSTR A plug flow reactor followed by CSTR CSTR in series CSTR followed by a plug flow reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E + ΔHA E + ΔHA - ΔHR ΔHA + ΔHR E E + ΔHA E + ΔHA - ΔHR ΔHA + ΔHR E ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit Retards the rate of reaction Reduces the value of equilibrium constant Does not initiate the reaction All of these Retards the rate of reaction Reduces the value of equilibrium constant Does not initiate the reaction All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Increases Remains same Increases linearly Decreases Increases Remains same Increases linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible reaction, a catalyst increases the rate of forward reaction And the backward reaction equally And decreases that of the backward reaction To a greater extent than that of the backward reaction Only And the backward reaction equally And decreases that of the backward reaction To a greater extent than that of the backward reaction Only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of the reaction, X → Y, quadruples when the concentration of 'X' is doubled. The rate expression for the reaction is, r = K Cxn, the value of 'n' in this case will be 1 2 3 1 2 3 ANSWER DOWNLOAD EXAMIANS APP
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