Chemical Reaction Engineering In Langmuir treatment of adsorption, Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule 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 All the adsorption does not take place by the same mechanism Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule 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 All the adsorption does not take place by the same mechanism ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reactions with low activation energy are Slow Non-spontaneous Always spantaneous Fast Slow Non-spontaneous Always spantaneous Fast ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular flow reactor with uniform concentration and temperature, the independent variable is Time Diameter None of these Length Time Diameter None of these Length ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume. Same as Less than More than Data insufficient; can't be predicted Same as Less than More than Data insufficient; can't be predicted ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Most important characteristics of gas-liquid reactors are the Both A and B Specific inter-facial area Liquid hold-up None of these Both A and B Specific inter-facial area Liquid hold-up None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b Use high pressure and eliminate inerts, when a > b Use CSTR with a high conversion, when a > b Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b Use high pressure and eliminate inerts, when a > b Use CSTR with a high conversion, when a > b Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b ANSWER DOWNLOAD EXAMIANS APP
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