Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Slurry reactors are characterised by the Presence of two mobile phases Both A and B Neither A nor B Lack of intraparticle diffusion resistance Presence of two mobile phases Both A and B Neither A nor B Lack of intraparticle diffusion resistance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From among the following, choose one which is not an exothermic process. Ammonia synthesis Methanol synthesis Oxidation of sulphur Catalytic cracking Ammonia synthesis Methanol synthesis Oxidation of sulphur Catalytic cracking 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) 1 L√(K/D1) ∞ 1/(L√(K/D1)) 1 L√(K/D1) ∞ 1/(L√(K/D1)) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to √d D D2 D1.5 √d D D2 D1.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Velocity of a chemical reaction Decreases with increase in temperature Increases with increase of pressure of reactants for all reactions Decreases with increase of reactant concentration None of these Decreases with increase in temperature Increases with increase of pressure of reactants for all reactions Decreases with increase of reactant concentration None of these ANSWER DOWNLOAD EXAMIANS APP
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