Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at Low temperature in a PFR High temperature in a CSTR High temperature in a PFR Low temperature in a CSTR Low temperature in a PFR High temperature in a CSTR High temperature in a PFR Low temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 2.24 2.5 2 1.6 2.24 2.5 2 1.6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The percent conversion of ethanol in the reactor is 100 97.5 2.5 95 100 97.5 2.5 95 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is Most suitable for very large production rate Suitable for gas-phase reactions on commercial scale Suitable for liquid phase reactions involving small production rate Least expensive to operate for a given rate Most suitable for very large production rate Suitable for gas-phase reactions on commercial scale Suitable for liquid phase reactions involving small production rate Least expensive to operate for a given rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of a __________ reactor, the composition in the reactor and at the exit of the reactor is the same. Semi-batch Batch Tubular Back-mix Semi-batch Batch Tubular Back-mix ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Slurry reactors are characterised by the Lack of intraparticle diffusion resistance Neither A nor B Both A and B Presence of two mobile phases Lack of intraparticle diffusion resistance Neither A nor B Both A and B Presence of two mobile phases ANSWER DOWNLOAD EXAMIANS APP
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