Chemical Reaction Engineering The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order. Zero Second None of these First Zero Second None of these First ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good. τ = θ , when the fluid density changes in the reactor τ and θ are always equal τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , for a non-isothermal reactor τ = θ , when the fluid density changes in the reactor τ and θ are always equal τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , for a non-isothermal reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of staged packed bed reactors carrying out exothermic reaction, use All of these Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature High recycle for pure gas Plug flow for dilute liquid requiring no large preheating of feed All of these Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature High recycle for pure gas Plug flow for dilute liquid requiring no large preheating of feed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) ∞ L√(K/D1) 1/(L√(K/D1)) 1 ∞ L√(K/D1) 1/(L√(K/D1)) 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Higher free energy of activation of a chemical reaction (at a given temperature) implies Both B and C Slower rate of reaction Higher equilibrium conversion Higher rate of reaction Both B and C Slower rate of reaction Higher equilibrium conversion Higher rate of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of chemical reaction __________ in the presence of catalyst. Increases Decreases Remains unaffected Can either increase or decrease (depends on the type of catalyst) Increases Decreases Remains unaffected Can either increase or decrease (depends on the type of catalyst) ANSWER DOWNLOAD EXAMIANS APP
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