Chemical Reaction Engineering In an ideal tubular-flow reactor Mixing takes place in radial direction There is a uniform velocity across the radius All of these There is no mixing in longitudinal direction Mixing takes place in radial direction There is a uniform velocity across the radius All of these There is no mixing in longitudinal direction 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 absorbed A and absorbed B Surface reaction between absorbed A and B in the gas phase Surface reaction between A in the gas phase and absorbed B Absorption of A Surface reaction between absorbed A and absorbed B Surface reaction between absorbed A and B in the gas phase Surface reaction between A in the gas phase and absorbed B Absorption of A 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. Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular flow reactor with uniform concentration and temperature, the independent variable is Time Diameter Length None of these Time Diameter Length None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only? Third First Zero Second Third First Zero Second ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an exothermic chemical reaction, the reactants compared to the products have Higher temperature Less energy Same energy More energy Higher temperature Less energy Same energy More energy ANSWER DOWNLOAD EXAMIANS APP
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