Chemical Reaction Engineering Which of the following is not a theory of homogeneous reaction? Radiation hypothesis Collision theory and activated complex theory None of these Chain reaction theory Radiation hypothesis Collision theory and activated complex theory None of these Chain reaction theory ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible reaction, a catalyst increases the rate of forward reaction Only And the backward reaction equally And decreases that of the backward reaction To a greater extent than that of the backward reaction Only And the backward reaction equally And decreases that of the backward reaction To a greater extent than that of the backward reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Desorption of C Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Desorption of C Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Semibatch reactor is preferred, when a/an A highly exothermic reaction is to be controlled Undersirable side reaction (at high concentration of one of the reactants) is to be avoided A gas is to be reacted with liquid (e.g. hydrogenation of fat) All of these A highly exothermic reaction is to be controlled Undersirable side reaction (at high concentration of one of the reactants) is to be avoided A gas is to be reacted with liquid (e.g. hydrogenation of fat) All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases. Decreases Remains unaffected Increases Unpredictable from the data Decreases Remains unaffected Increases Unpredictable from the data 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
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