Chemical Reaction Engineering For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption. Both A and B Chemical Physical Neither A nor B Both A and B Chemical Physical Neither A nor B 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 Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b Use CSTR with a high conversion, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The energy of activation of a chemical reaction Varies as fifth power of the temperature Is the minimum energy which the molecules must have before the reaction can take place Both B and C Is same as heat of reaction at constant pressure Varies as fifth power of the temperature Is the minimum energy which the molecules must have before the reaction can take place Both B and C Is same as heat of reaction at constant pressure 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) Remains same Decreases Increases Increases linearly Remains same Decreases Increases Increases linearly ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From among the following, choose one which is not an exothermic process. Ammonia synthesis Catalytic cracking Methanol synthesis Oxidation of sulphur Ammonia synthesis Catalytic cracking Methanol synthesis Oxidation of sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The importance of diffusion in a catalyst are increased by All of these An active surface of the catalyst Small pore diameter Large catalyst particle size All of these An active surface of the catalyst Small pore diameter Large catalyst particle size ANSWER DOWNLOAD EXAMIANS APP
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