Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at High temperature in a CSTR Low temperature in a CSTR Low temperature in a PFR High temperature in a PFR High temperature in a CSTR Low temperature in a CSTR Low temperature in a PFR High temperature in a PFR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. > 0.5 < 0.5 ∞ 0 > 0.5 < 0.5 ∞ 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An isothermal aqueous phase reversible reaction, P ⇋ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m³ .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the 1.60 1.33 2.67 0.80 1.60 1.33 2.67 0.80 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a reaction is a function of the Extent of reaction Initial concentration of the reactants Time of reaction Temperature of the system Extent of reaction Initial concentration of the reactants Time of reaction Temperature of the system 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 The temperature is increased A catalyst is added An inert gas is pumped keeping the temperature constant None of these The temperature is increased A catalyst is added An inert gas is pumped keeping the temperature constant None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume. Less than Same as Data insufficient; can't be predicted More than Less than Same as Data insufficient; can't be predicted More than ANSWER DOWNLOAD EXAMIANS APP
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