Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) ∝ 1/CA ∝ CA None of these Independent of temperature ∝ 1/CA ∝ CA None of these Independent of temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is 3 2 0 1 3 2 0 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The increase in the rate of reaction with temperature is due to None of these Increase in the number of effective collisions Increase in the average kinetic energy of the reacting molecules Decrease in activation energy None of these Increase in the number of effective collisions Increase in the average kinetic energy of the reacting molecules Decrease in activation energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space time equals the mean residence time When the density of the reaction mixture is constant For CSTR For narrow diameter tubular reactor For large diameter tubular reactor When the density of the reaction mixture is constant For CSTR For narrow diameter tubular reactor For large diameter tubular reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst promoter Improves the activity of a catalyst Itself has very high activity All of these Acts as a catalyst support Improves the activity of a catalyst Itself has very high activity All of these Acts as a catalyst support ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Molecularity of an elementary reaction, P + Q → R + S is 1 3 2 4 1 3 2 4 ANSWER DOWNLOAD EXAMIANS APP