Chemical Reaction Engineering Semibatch reactor is preferred, when a/an A gas is to be reacted with liquid (e.g. hydrogenation of fat) Undersirable side reaction (at high concentration of one of the reactants) is to be avoided A highly exothermic reaction is to be controlled All of these A gas is to be reacted with liquid (e.g. hydrogenation of fat) Undersirable side reaction (at high concentration of one of the reactants) is to be avoided A highly exothermic reaction is to be controlled All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ? 2O? ? 3O? N? + O? ? 2NO 2NO? ? N?O? 2SO? + O? ? 2SO? 2O? ? 3O? N? + O? ? 2NO 2NO? ? N?O? 2SO? + O? ? 2SO? ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Enzymes are destroyed, when the Reaction rate is independent of the reactant's concentration Reactant's concentration is very low Reactant's concentration is very high Temperature is very high Reaction rate is independent of the reactant's concentration Reactant's concentration is very low Reactant's concentration is very high Temperature is very high ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction requires two equal sized CSTR. The conversion is Less when they are connected in series Same whether they are connected in series or in parallel More when they are connected in series More when they are connected in parallel Less when they are connected in series Same whether they are connected in series or in parallel More when they are connected in series More when they are connected in parallel ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate of a chemical reaction is not influenced by the Number of molecules of reactants taking part in a reaction Temperature Reactants concentration Catalyst Number of molecules of reactants taking part in a reaction Temperature Reactants concentration Catalyst 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 absorbed A and absorbed B Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and B in the gas phase Absorption of A Surface reaction between absorbed A and absorbed B Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and B in the gas phase ANSWER DOWNLOAD EXAMIANS APP
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