Chemical Reaction Engineering The residence time distribution of an ideal CSTR is 1/τ exp (-t/τ) Exp(-t/τ) 1/τ (-t/τ) Τ exp (-t/τ) 1/τ exp (-t/τ) Exp(-t/τ) 1/τ (-t/τ) Τ exp (-t/τ) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of 3 7 44015 6 3 7 44015 6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 2.24 2.5 1.6 2 2.24 2.5 1.6 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant Decreases with pressure Increases with pressure Is independent of pressure Increases /decreases with pressure depending on the stoichiometric co-efficients of the reaction Decreases with pressure Increases with pressure Is independent of pressure Increases /decreases with pressure depending on the stoichiometric co-efficients of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if An inert gas is pumped keeping the temperature constant A catalyst is added None of these The temperature is increased An inert gas is pumped keeping the temperature constant A catalyst is added None of these The temperature is increased ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a/an __________ vessel, the fluid enters and leaves following plug flow. Closed Close-opened Open Open-closed Closed Close-opened Open Open-closed ANSWER DOWNLOAD EXAMIANS APP
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