Chemical Reaction Engineering When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as ND = n/2 ND = (n + 1)/2 ND = n + 1 None of these ND = n/2 ND = (n + 1)/2 ND = n + 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value. Twice None of these Half Equal Twice None of these Half Equal ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.) Thiele modulus (L√(k/D1) Reduced time (vt/V) Reactor dispersion number (D/vL) None of these Thiele modulus (L√(k/D1) Reduced time (vt/V) Reactor dispersion number (D/vL) None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The extent of a reaction is Different for reactants and products Dimensionless All of these Depends on the stoichiometric co-efficient Different for reactants and products Dimensionless All of these Depends on the stoichiometric co-efficient ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal mixed reactor (at steady state), the Exit stream has the same composition as the fluid within the reactor All of these Composition throughout the reactor remains same Space time is equivalent to holding time for constant density systems Exit stream has the same composition as the fluid within the reactor All of these Composition throughout the reactor remains same Space time is equivalent to holding time for constant density systems ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a zero order reaction, reactants concentration does not change with time and the Reaction rate is trebled when the initial concentration is trebled Time for half change is independent of the initial concentration Time for half change is half the time taken for completion of the reaction Time for completion of the reaction is independent of the initial concentration Reaction rate is trebled when the initial concentration is trebled Time for half change is independent of the initial concentration Time for half change is half the time taken for completion of the reaction Time for completion of the reaction is independent of the initial concentration ANSWER DOWNLOAD EXAMIANS APP
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