Chemical Reaction Engineering A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction. Equal to or more than Less than More than Equal to Equal to or more than Less than More than Equal to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The value of steric factor 'P' in the equation k = PZeE/RT usually ranges from L.l.to 10² None of these L.0 to 10⁻⁸ 0.1 to 0.9 L.l.to 10² None of these L.0 to 10⁻⁸ 0.1 to 0.9 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a fluidised bed reactor, the most suitable/relevant model is a __________ model. None of these Plug flow Tank in series Bubbling bed None of these Plug flow Tank in series Bubbling bed 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 batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b Use high pressure and eliminate inerts, when a > b Use CSTR with a high conversion, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b Use high pressure and eliminate inerts, when a > b Use CSTR with a high conversion, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Always irreversible Mostly irreversible Highly temperature sensitive Insensitive to temperature changes Always irreversible Mostly irreversible Highly temperature sensitive Insensitive to temperature changes ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal P.F.R. at steady state conditions The composition of reactants remains constant along a flow path There may be diffusion along the flow path There is no lateral mixing of fluid The conversion of the reactant varies from point to point along a flow path The composition of reactants remains constant along a flow path There may be diffusion along the flow path There is no lateral mixing of fluid The conversion of the reactant varies from point to point along a flow path ANSWER DOWNLOAD EXAMIANS APP
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