Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) ∝ 1/CA None of these Independent of temperature ∝ CA ∝ 1/CA None of these Independent of temperature ∝ CA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Decreases Increases linearly Increases Remains same Decreases Increases linearly Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature. May be greater or less than Is always equal to Is always greater than Is always less than May be greater or less than Is always equal to Is always greater than Is always less than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is increased ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate determining step in a reaction consisting of a number of steps in series is the __________ step. Data insufficient; can't be predicted Intermediate Fastest Slowest Data insufficient; can't be predicted Intermediate Fastest Slowest ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A plug-flow reactor is characterised by Presence of axial mixing High capacity Presence of lateral mixing Constant composition and temperature of reaction mixture Presence of axial mixing High capacity Presence of lateral mixing Constant composition and temperature of reaction mixture ANSWER DOWNLOAD EXAMIANS APP
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