Chemical Reaction Engineering A catalyst loses its activity due to Loss in surface area of the active component All of these Agglomeration of metal particles caused by thermal sintering of the solid surface Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component All of these Agglomeration of metal particles caused by thermal sintering of the solid surface Covering of the catalytic active sites by a foregin substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the gaseous phase ammonia formation reaction (N₂ + 3H₂ ⇋ 2NH₃), the value of the equilibrium constant depends on the Volume of the reactor Total pressure of the system Temperature Initial concentration of N₂ and H₂ Volume of the reactor Total pressure of the system Temperature Initial concentration of N₂ and H₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure? None of these Langmuir adsorption isotherm Adsorption isobar Freundlich adsorption isotherm None of these Langmuir adsorption isotherm Adsorption isobar Freundlich adsorption isotherm ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering 6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO₂ and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant? 0.2 1 0.75 0.95 0.2 1 0.75 0.95 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single stirred tank (v = 5 litres) Single tubular flow reactor (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single stirred tank (v = 5 litres) Single tubular flow reactor (v = 5 litres) Two stirred tank (each of 2.5 litres) in series ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The half life period of a first order reaction is Half the specific rate constant Dependent on initial concentration of the reactants Proportional to the initial concentration of reactants Always the same irrespective of the reaction Half the specific rate constant Dependent on initial concentration of the reactants Proportional to the initial concentration of reactants Always the same irrespective of the reaction ANSWER DOWNLOAD EXAMIANS APP
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