Chemical Reaction Engineering Specific rate constant for a second order reaction Depends on the nature of the reactants Varies with temperature Is independent of temperature Both B and C Depends on the nature of the reactants Varies with temperature Is independent of temperature Both B and C ANSWER DOWNLOAD EXAMIANS APP
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 PFR Low temperature in a PFR Low temperature in a CSTR High temperature in a CSTR High temperature in a PFR Low temperature in a PFR Low temperature in a CSTR High temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A space time of 3 hours for a flow reactor means that Conversion is cent per cent after three hours The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours It takes three hours to dump the entire volume of the reactor with feed Three reactor volumes of feed can be processed every hour Conversion is cent per cent after three hours The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours It takes three hours to dump the entire volume of the reactor with feed Three reactor volumes of feed can be processed every hour ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If ΔG (free energy change) for a chemical reaction is very large and negative, then the reaction is Not feasible Very much feasible Unpredictable as ΔG is no measure of feasibility of a reaction Just feasible Not feasible Very much feasible Unpredictable as ΔG is no measure of feasibility of a reaction Just feasible 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 1.33 2.67 1.60 0.80 1.33 2.67 1.60 0.80 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ is the controlling step in a highly temperature sensitive fluid-solid non-catalytic reaction. Gas film diffusion Ash diffusion None of these Chemical reaction Gas film diffusion Ash diffusion None of these Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
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