Chemical Reaction Engineering Which of the following is an autocatalytic reaction? Enzyme fermentation reaction Photochemical reactions Microbial fermentation reaction Ammonia synthesis reaction Enzyme fermentation reaction Photochemical reactions Microbial fermentation reaction Ammonia synthesis reaction 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 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 High temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is ∞ 1 >1 ≥1 ∞ 1 >1 ≥1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is characterised by Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Variation in reactor volume Very low conversion Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Variation in reactor volume Very low conversion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Neither A nor B Decreases Either A or B; depends on the type of catalyst Increases Neither A nor B Decreases Either A or B; depends on the type of catalyst Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the reversible reaction of the type, A + B ⇋ AB, in general Both forward and backward reactions will be exothermic Neither of the reactions will be en-dothermic The combination reaction will be exothermic, while the dissociation reaction will be endothermic The combination reaction will be endothermic, while the dissociation reaction will be exothermic Both forward and backward reactions will be exothermic Neither of the reactions will be en-dothermic The combination reaction will be exothermic, while the dissociation reaction will be endothermic The combination reaction will be endothermic, while the dissociation reaction will be exothermic ANSWER DOWNLOAD EXAMIANS APP
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