Chemical Reaction Engineering Which of the following fixes the volume of a batch reactor for a particular conversion and production rate? Operating conditions (e.g. pressure and temperature) Density of mixture Rate constant None of these Operating conditions (e.g. pressure and temperature) Density of mixture Rate constant None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction. Less than Equal to More than Equal to or more than Less than Equal to More than Equal to or more than 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 is no lateral mixing of fluid The conversion of the reactant varies from point to point along a flow path There may be diffusion along the flow path The composition of reactants remains constant along a flow path There is no lateral mixing of fluid The conversion of the reactant varies from point to point along a flow path There may be diffusion along the flow path ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because CaO is more stable than CaCO₃ CaO is not dissociated Of high calcination temperature CO₂ escapes continuously CaO is more stable than CaCO₃ CaO is not dissociated Of high calcination temperature CO₂ escapes continuously ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Increases Increases linearly Remains same Decreases Increases Increases linearly Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these ANSWER DOWNLOAD EXAMIANS APP
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