Chemical Reaction Engineering The half life period of a first order reaction is given by (where, K = rate constant. ) 1.5 K 2.5 K 6.93 K 0.693/K 1.5 K 2.5 K 6.93 K 0.693/K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Free energy of activation is higher Entropy changes Free energy of activation is lower Initial concentration of the reactants remains constant Free energy of activation is higher Entropy changes Free energy of activation is lower Initial concentration of the reactants remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii) (i) endothermic (ii) exothermic (i) exothermic (ii) exothermic (i) exothermic (ii) endothermic (i) endothermic (ii) enodthermic (i) endothermic (ii) exothermic (i) exothermic (ii) exothermic (i) exothermic (ii) endothermic (i) endothermic (ii) enodthermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor. Fixed bed reactor followed by a fluidised Fluidised Fluidised bed reactor followed by a fixed Fixed Fixed bed reactor followed by a fluidised Fluidised Fluidised bed reactor followed by a fixed Fixed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because CO₂ escapes continuously Of high calcination temperature CaO is not dissociated CaO is more stable than CaCO₃ CO₂ escapes continuously Of high calcination temperature CaO is not dissociated CaO is more stable than CaCO₃ 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
EXAMIANS