Chemical Reaction Engineering For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good. τ and θ are always equal τ = θ , for a non-isothermal reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , when the fluid density changes in the reactor τ and θ are always equal τ = θ , for a non-isothermal reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , when the fluid density changes in the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reactions of high molecularity are rare, because Many body collisions are not favoured energetically Of very large activation energy of many bodies Of low probability of many body collisions Of requirement of very large concentration for such reactions Many body collisions are not favoured energetically Of very large activation energy of many bodies Of low probability of many body collisions Of requirement of very large concentration for such reactions ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For series reaction, the relative yield Decreases with increasing conversion Statement in A is wrong Is always greater for plug-flow reactor than for the single CSTR of the same volume Both A and C hold good Decreases with increasing conversion Statement in A is wrong Is always greater for plug-flow reactor than for the single CSTR of the same volume Both A and C hold good ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors. Both the conversion as well as concentrations will be different Conversion in both will be the same but concentrations will be different None of these Both conversion as well as concentration are same Both the conversion as well as concentrations will be different Conversion in both will be the same but concentrations will be different None of these Both conversion as well as concentration are same ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum. Decreases Remains unchanged Increases Unpredictable from the data Decreases Remains unchanged Increases Unpredictable from the data ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is used for calcination of limestone and dolomite in industrial practice? Fluidised bed reactor Moving bed reactor None of these Fixed bed reactor Fluidised bed reactor Moving bed reactor None of these Fixed bed reactor ANSWER DOWNLOAD EXAMIANS APP
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