Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) ∝ CA None of these ∝ 1/CA Independent of temperature ∝ CA None of these ∝ 1/CA Independent of temperature ANSWER DOWNLOAD EXAMIANS APP
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 High temperature in a CSTR Low temperature in a PFR Low temperature in a CSTR High temperature in a PFR High temperature in a CSTR Low temperature in a PFR Low temperature in a CSTR High temperature in a PFR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Helium-mercury method can be used to determine the __________ of the catalyst particle. Porosity Pore volume Solid density All of these Porosity Pore volume Solid density All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor? Temperature should be high in the beginning and decreased towards the end of the reaction Very low temperature should be used throughout the reaction None of these Very high temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction Very low temperature should be used throughout the reaction None of these Very high temperature should be used throughout the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order. None of these Zero First Second None of these Zero First Second ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ is the controlling step in a highly temperature sensitive fluid-solid non-catalytic reaction. Ash diffusion None of these Chemical reaction Gas film diffusion Ash diffusion None of these Chemical reaction Gas film diffusion ANSWER DOWNLOAD EXAMIANS APP
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