Chemical Reaction Engineering In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii) (i) exothermic (ii) exothermic (i) endothermic (ii) enodthermic (i) exothermic (ii) endothermic (i) endothermic (ii) exothermic (i) exothermic (ii) exothermic (i) endothermic (ii) enodthermic (i) exothermic (ii) endothermic (i) endothermic (ii) exothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order. Second None of these First Zero Second None of these First Zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The eddy diffusivity for a liquid in plug flow must be ∞ 1 Between 0 and 1 0 ∞ 1 Between 0 and 1 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The following gas phase reactions are carried out isothermally in a CSTR.A → 2R ; r₁ = K₁pA ;K₁ = 20mole/(sec.m³ bar)A → 3S ; r₂ = K₂ pA ;K₂ = 40mole/ (sec.m³ .bar)What is the maximum possible value of FR(mole/sec.) ? 43864 2 43832 43833 43864 2 43832 43833 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A backmix reactor Is same as ideal stirred tank reactor Employs mixing in axial direction only Is same as plug-flow reactor Is most suitable for gas phase reaction Is same as ideal stirred tank reactor Employs mixing in axial direction only Is same as plug-flow reactor Is most suitable for gas phase reaction 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. 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 ANSWER DOWNLOAD EXAMIANS APP
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