Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Increased temperature reduces the activation energy Value of threshold energy decreases Collision frequency increases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy Value of threshold energy decreases Collision frequency increases Fraction of molecules having threshold energy increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The sequence in which three CSTR's of volumes 5, 10 and 15 m³ will be connected in series to obtain the maximum production in a second order irreversible reaction is 10, 5, 15 15, 10, 5 5, 10, 15 10, 15, 5 10, 5, 15 15, 10, 5 5, 10, 15 10, 15, 5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Semibatch reactor is preferred, when a/an Undersirable side reaction (at high concentration of one of the reactants) is to be avoided All of these A highly exothermic reaction is to be controlled A gas is to be reacted with liquid (e.g. hydrogenation of fat) Undersirable side reaction (at high concentration of one of the reactants) is to be avoided All of these A highly exothermic reaction is to be controlled A gas is to be reacted with liquid (e.g. hydrogenation of fat) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 4 2 11 22 4 2 11 22 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The irreversible reaction is a special case of reversible reaction, if the All of these Conversion of the reactant at equilibrium condition is zero Equilibrium constant is 1 Reactant concentration at equilibrium condition is zero All of these Conversion of the reactant at equilibrium condition is zero Equilibrium constant is 1 Reactant concentration at equilibrium condition is zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Remains unchanged Unpredictable from the data Decreases Increases Remains unchanged Unpredictable from the data Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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