Chemical Reaction Engineering An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature. Is always greater than May be greater or less than Is always equal to Is always less than Is always greater than May be greater or less than Is always equal to Is always less than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times. 8 4 2 16 8 4 2 16 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to D1.5 √d D2 D D1.5 √d D2 D 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 = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ and θ are always equal τ = θ , when the fluid density changes in the reactor τ = θ , for a non-isothermal reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ and θ are always equal τ = θ , when the fluid density changes in the reactor τ = θ , for a non-isothermal reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Photo-chemical reactions occur in presence of Solid catalysts Monochromatic radiation only Darkness Sunlight Solid catalysts Monochromatic radiation only Darkness Sunlight ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Desorption of C Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Desorption of C Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase ANSWER DOWNLOAD EXAMIANS APP
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