Chemical Reaction Engineering Which of the following is a controlling factor in very fast heterogeneous reaction? Heat and mass transfer effects Temperature Composition of reactant Pressure Heat and mass transfer effects Temperature Composition of reactant Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following chemical reactions will be favoured by low pressure ? N₂O₂ ⇋ 2NO₂ 2HI ⇋ H₂ + I₂ None of these N₂ + O₂ ⇋ 2NO N₂O₂ ⇋ 2NO₂ 2HI ⇋ H₂ + I₂ None of these N₂ + O₂ ⇋ 2NO ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A 3B. Mole fraction of A in the exit stream is 43833 43834 43832 43835 43833 43834 43832 43835 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering To maximise the formation of R in the simultaneous reactionA + B → R , rR = 2CA0.5.CB2 A + B → S , rS = 1.5 CA . CB We should have Low CA, low CB Low CA, high CB High CA, high CB High CA, low CB Low CA, low CB Low CA, high CB High CA, high CB High CA, low CB ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship. T ∝ 1/an - 1 T ∝ an T ∝ 1/an T ∝ 1/an + 1 T ∝ 1/an - 1 T ∝ an T ∝ 1/an T ∝ 1/an + 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Semibatch reactor is preferred, when a/an All of these A gas is to be reacted with liquid (e.g. hydrogenation of fat) A highly exothermic reaction is to be controlled Undersirable side reaction (at high concentration of one of the reactants) is to be avoided All of these A gas is to be reacted with liquid (e.g. hydrogenation of fat) A highly exothermic reaction is to be controlled Undersirable side reaction (at high concentration of one of the reactants) is to be avoided ANSWER DOWNLOAD EXAMIANS APP