Chemical Reaction Engineering With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be Higher in P.F. reactor Higher in CSTR Same in both the reactors Data insufficient; can't be predicted Higher in P.F. reactor Higher in CSTR Same in both the reactors Data insufficient; can't be predicted 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 B in the gas phase Surface reaction between absorbed A and absorbed B Absorption of A Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Absorption of A ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? Chemical reaction Pore diffusion Film diffusion Ash layer diffusion Chemical reaction Pore diffusion Film diffusion Ash layer diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal mixed reactor (at steady state), the Composition throughout the reactor remains same Space time is equivalent to holding time for constant density systems All of these Exit stream has the same composition as the fluid within the reactor Composition throughout the reactor remains same Space time is equivalent to holding time for constant density systems All of these Exit stream has the same composition as the fluid within the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the Pressure Temperature Neither A nor B Both A & B Pressure Temperature Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction Decreases the activation energy Alters the reaction mechanism All of these Increases the frequency of collisions of reacting species Decreases the activation energy Alters the reaction mechanism All of these Increases the frequency of collisions of reacting species ANSWER DOWNLOAD EXAMIANS APP
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