Chemical Reaction Engineering There is no correspondence between stoichiometry and the rate equation in case of a/an __________ reaction. Non-elementary Elementary Autocatalytic Multiple Non-elementary Elementary Autocatalytic Multiple ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of the heterogenous catalytic reaction A(g) + B(g) ? C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction isA. absorption of A. Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Absorption of A Surface reaction between absorbed A and B in the gas phase Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Absorption of A Surface reaction between absorbed A and B in the gas phase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst inhibitor Lessens its selectivity Is added in small quantity during the catalyst manufacture itself All of these May be useful for suppressing undesirable side reactions Lessens its selectivity Is added in small quantity during the catalyst manufacture itself All of these May be useful for suppressing undesirable side reactions ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is 0.5 0.33 1 Data insufficient, can't be predicted 0.5 0.33 1 Data insufficient, can't be predicted ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The role of a catalyst in a chemical reaction is to change the Final products Heat of reaction Activation energy Equilibrium constant Final products Heat of reaction Activation energy Equilibrium constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.) None of these Thiele modulus (L√(k/D1) Reactor dispersion number (D/vL) Reduced time (vt/V) None of these Thiele modulus (L√(k/D1) Reactor dispersion number (D/vL) Reduced time (vt/V) ANSWER DOWNLOAD EXAMIANS APP
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