Chemical Reaction Engineering The role of a catalyst in a chemical reaction is to change the Final products Activation energy Heat of reaction Equilibrium constant Final products Activation energy Heat of reaction Equilibrium constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) Tan hT/tan T None of these Tan hT/T Tan T/T Tan hT/tan T None of these Tan hT/T Tan T/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is suitable for Large scale gaseous phase reactions Obtaining uniform polymerisation products in highly exothermic reactions Liquid phase reactions Achieving cent percent conversion of reactants into products Large scale gaseous phase reactions Obtaining uniform polymerisation products in highly exothermic reactions Liquid phase reactions Achieving cent percent conversion of reactants into products ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. Equals Can be either greater or smaller than (depends on the type of reaction) Is greater than Is smaller than Equals Can be either greater or smaller than (depends on the type of reaction) Is greater than Is smaller than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering "A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?A. Inner catalyst core of radius R/8 does not participate in reaction." Inner catalyst core of radius 7R/8 does not participate in reaction Inner catalyst core of radius R/2 does not participate in reaction Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 Inner catalyst core of radius R/8 does not participate in reaction Inner catalyst core of radius 7R/8 does not participate in reaction Inner catalyst core of radius R/2 does not participate in reaction Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1 Inner catalyst core of radius R/8 does not participate in reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will Also be doubled Be halved Remain the same Become one fourth Also be doubled Be halved Remain the same Become one fourth ANSWER DOWNLOAD EXAMIANS APP
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