Chemical Reaction Engineering Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the Equilibrium constant Activation energy Heat of reaction None of these Equilibrium constant Activation energy Heat of reaction None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the dispersion number for a CSTR? 1 ∞ 0 < 1 1 ∞ 0 < 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of a chemical reaction is None of these Half of the residence time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value Half of the space time of a reaction None of these Half of the residence time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value Half of the space time of a reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation? The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process Langmuir None of these There is no dynamic equilibrium between successive layer The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process Langmuir None of these There is no dynamic equilibrium between successive layer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The half life period of a first order reaction is 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 Half the specific rate constant Dependent on initial concentration of the reactants ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst carriers Have very high selectivity Increase the activity of a catalyst Provide large surface area with a small amount of active material Inhibit catalyst poisoning Have very high selectivity Increase the activity of a catalyst Provide large surface area with a small amount of active material Inhibit catalyst poisoning ANSWER DOWNLOAD EXAMIANS APP
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