Chemical Reaction Engineering A catalyst loses its activity due to Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fluidised bed reactor is characterised by Uniformity of temperature Very small pressure drop Absence of continuous catalyst regeneration facility Comparatively smaller equipment Uniformity of temperature Very small pressure drop Absence of continuous catalyst regeneration facility Comparatively smaller equipment ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is 2 3 1 2 3 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Kinetics of a catalytic reaction can be best studied on a/an __________ reactor. Mixed Either A, B and C Integral (plug flow) Differential (flow) Mixed Either A, B and C Integral (plug flow) Differential (flow) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good. τ and θ are always equal τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , when the fluid density changes in the reactor τ = θ , for a non-isothermal reactor τ and θ are always equal τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , when the fluid density changes in the reactor τ = θ , for a non-isothermal reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In Langmuir treatment of adsorption, Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site Extent of adsorption is more than one complete monomolecular layer on the surface Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule All the adsorption does not take place by the same mechanism Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site Extent of adsorption is more than one complete monomolecular layer on the surface Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule All the adsorption does not take place by the same mechanism ANSWER DOWNLOAD EXAMIANS APP
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