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 Transition state theory relates the above quantities as K ∝ T.eE/RT K ∝ e-E/RT K ∝ T1.5 K ∝ √T K ∝ T.eE/RT K ∝ e-E/RT K ∝ T1.5 K ∝ √T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance. Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Threshold energy in a reaction is equal to the Activation energy Neither A nor B Sum of A & B Normal energy of reactants Activation energy Neither A nor B Sum of A & B Normal energy of reactants 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 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
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