Chemical Reaction Engineering A batch reactor is suitable for Large scale gaseous phase reactions Achieving cent percent conversion of reactants into products Obtaining uniform polymerisation products in highly exothermic reactions Liquid phase reactions Large scale gaseous phase reactions Achieving cent percent conversion of reactants into products Obtaining uniform polymerisation products in highly exothermic reactions Liquid phase reactions ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes. 8 3 4 6 8 3 4 6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering There is no correspondence between stoichiometry and the rate equation in case of a/an __________ reaction. Autocatalytic Multiple Elementary Non-elementary Autocatalytic Multiple Elementary Non-elementary ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E + ΔHA E + ΔHA - ΔHR E ΔHA + ΔHR E + ΔHA E + ΔHA - ΔHR E ΔHA + ΔHR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of __________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds. Series Auto catalytic Catalytic Parallel Series Auto catalytic Catalytic Parallel ANSWER DOWNLOAD EXAMIANS APP
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