Chemical Reaction Engineering The residence time distribution of an ideal CSTR is 1/τ exp (-t/τ) Τ exp (-t/τ) 1/τ (-t/τ) Exp(-t/τ) 1/τ exp (-t/τ) Τ exp (-t/τ) 1/τ (-t/τ) Exp(-t/τ) 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 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 Surface reaction between A in the gas phase and absorbed B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is 1 0 2 3 1 0 2 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the equilibrium __________ rises in case of endothermic reaction. Conversion Constant Neither A nor B Both A & B Conversion Constant Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a zero order reaction, the concentration of product increases with the Total pressure Increase in initial concentration Increase of reaction time Decrease in total pressure Total pressure Increase in initial concentration Increase of reaction time Decrease in total pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to Agglomeration of metal particles caused by thermal sintering of the solid surface Loss in surface area of the active component All of these Covering of the catalytic active sites by a foregin substance Agglomeration of metal particles caused by thermal sintering of the solid surface Loss in surface area of the active component All of these Covering of the catalytic active sites by a foregin substance ANSWER DOWNLOAD EXAMIANS APP
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