Chemical Reaction Engineering A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to Gain a proton None of these Lose a proton Lose an electron Gain a proton None of these Lose a proton Lose an electron ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering As the chemical reaction proceeds, the rate of reaction Increases Remains same May increase or decrease depending on the type of reaction Decreases Increases Remains same May increase or decrease depending on the type of reaction Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is used for calcination of limestone and dolomite in industrial practice? Moving bed reactor Fluidised bed reactor None of these Fixed bed reactor Moving bed reactor Fluidised bed reactor None of these Fixed bed reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of a first order irreversible reaction A → B is Ln k/2 Ln 0.5/k Ln 2/k K/2 Ln k/2 Ln 0.5/k Ln 2/k K/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b Use CSTR with a high conversion, when a > b Avoid recycle, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Use CSTR with a high conversion, when a > b Avoid recycle, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b 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 There is no dynamic equilibrium between successive layer None of these 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 There is no dynamic equilibrium between successive layer None of these ANSWER DOWNLOAD EXAMIANS APP
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