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 For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min⁻¹ . What will be the conversion for a PFR with a space velocity of 0.2 min⁻¹? Assume that all the other operating conditions are the same for CSTR and PFR. 0.9 0.6 0.15 0.3 0.9 0.6 0.15 0.3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of the reaction, X → Y, quadruples when the concentration of 'X' is doubled. The rate expression for the reaction is, r = K Cxn, the value of 'n' in this case will be 3 1 2 3 1 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in Intestine Blood Gland Saliva Intestine Blood Gland Saliva ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Velocity of a reaction depends upon the Nature of the reactants All of these Concentration of the reactants Temperature at which the reaction is carried Nature of the reactants All of these Concentration of the reactants Temperature at which the reaction is carried ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the rate constant obeying Arhenious equation Decreases exponentially Can either increase or decrease ; depends on the frequency factor Increases Decreases Decreases exponentially Can either increase or decrease ; depends on the frequency factor Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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