Chemical Reaction Engineering Holding time for flow reactors is __________ the space time, for constant fluid density Double None of these Triple Equal to Double None of these Triple Equal to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering There is no correspondence between stoichiometry and the rate equation in case of a/an __________ reaction. Non-elementary Multiple Elementary Autocatalytic Non-elementary Multiple Elementary Autocatalytic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison. Chemisorbed Deposited Selectivity Stability Chemisorbed Deposited Selectivity Stability ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering B.E.T. method can be used to determine the __________ of a porous catalyst. Pore volume All of these Solid density Surface area Pore volume All of these Solid density Surface area 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 ΔHA + ΔHR E + ΔHA - ΔHR E E + ΔHA ΔHA + ΔHR E + ΔHA - ΔHR E ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship. T ∝ 1/an + 1 T ∝ 1/an T ∝ 1/an - 1 T ∝ an T ∝ 1/an + 1 T ∝ 1/an T ∝ 1/an - 1 T ∝ an ANSWER DOWNLOAD EXAMIANS APP
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