Chemical Reaction Engineering For multiple reactions, the flow pattern within the vessel affects the Neither A nor B Both A and B Size requirement Distribution of reaction products Neither A nor B Both A and B Size requirement Distribution of reaction products ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it Decreases the energy barrier for reaction None of these Increases the activation energy Decreases the molecular collision diameter Decreases the energy barrier for reaction None of these Increases the activation energy Decreases the molecular collision diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of the heterogenous catalytic reaction A(g) + B(g) ? C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction isA. absorption of A. Absorption of A Surface reaction between absorbed A and absorbed B Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and B in the gas phase Absorption of A Surface reaction between absorbed A and absorbed B Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and B in the gas phase 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 Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule Extent of adsorption is more than one complete monomolecular layer on the surface 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 Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule Extent of adsorption is more than one complete monomolecular layer on the surface All the adsorption does not take place by the same mechanism ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Remains unaffected Unpredictable from the data Increases Decreases Remains unaffected Unpredictable from the data Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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