Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Single stirred tank (v = 5 litres) Stirred tank followed by tubular flow reactor (each of 2.5 litres) Two stirred tank (each of 2.5 litres) in series Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Stirred tank followed by tubular flow reactor (each of 2.5 litres) Two stirred tank (each of 2.5 litres) in series Single tubular flow reactor (v = 5 litres) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? All of these Decay reactions Form of surface attack by poison Pore diffusion All of these Decay reactions Form of surface attack by poison Pore diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible reaction, a catalyst increases the rate of forward reaction And the backward reaction equally Only To a greater extent than that of the backward reaction And decreases that of the backward reaction And the backward reaction equally Only To a greater extent than that of the backward reaction And decreases that of the backward reaction 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 reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter 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 CSTR with a high conversion, when a > b Use batch reactor or plug flow reactor, when a > b Use high pressure and eliminate inerts, when a > b Avoid recycle, when a > b Use CSTR with a high conversion, when a > b Use batch reactor or plug flow reactor, when a > b Use high pressure and eliminate inerts, when a > b Avoid recycle, 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 Both B and C Is the minimum energy which the molecules must have before the reaction can take place Is same as heat of reaction at constant pressure Varies as fifth power of the temperature Both B and C Is the minimum energy which the molecules must have before the reaction can take place Is same as heat of reaction at constant pressure ANSWER DOWNLOAD EXAMIANS APP
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