(1) Which of the following is essential for autothermal reactor operation? (i) E
ID: 703894 • Letter: #
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(1) Which of the following is essential for autothermal reactor operation? (i) Exothermic reaction in a non-adiabatic reactor (ii) Exothermic reaction in an adiabatic reactor (ii) Endothermic reaction in an adiabatic reactor. (iv) Endothermic reaction in a non-adiabatic reactor (v) None of the above (2) The expression of G(T (AHR)tAeE(1+tA), applies to which of the following systems? (i) Second-order reaction of A in an adiabatic batch reactor at low temperatures. (ii) First-order reaction of A in an adiabatic CSTR. (ii) First-order reaction of A in a non-adiabatic CSTR. (iv) Third-order reaction of A in a non-adiabatic PFR at high temperature. (v) None of the above (3) The rate law for the reaction between A and B to form Cover a specific catalyst is: Which of the following rate-limiting steps is consistent with this rate law? (i) Surface reaction between adsorbed A and adsorbed B via a dual-site (ii) Adsorption of A on the surface mechanism. (ii) Surface reaction between adsorbed B and gas-phase A via the Eley-Rideal mechanism. (iv) Adsorption of B from the surface (v) None of the above (4) The surface reaction rate expression, r.-ks(CAS Gas. + Cc.s CD.s/Ks), applies to which of the following systems? (i) Reaction between A and B forming C and D via a dual-site mechanism. () Reaction between A and B forming C and D via a dual-site mechanism involving different surface sites. (ii) Reaction between A and B forming C and D via a single-site mechanism. (iv) Reaction between A and B forming C and D via the Eley-Rideal mechanism (v) None of the aboveExplanation / Answer
(1) how to thermal reactors are generally used for exothermic reactions. Increasing the temperature of the reactants and then decreasing the temperature according to reaction conditions is the major advantage in the auto thermal reactors are adiabatic reactors .
(2) the the given reaction his second order of A an adiabatic batch reactors at very low temperature.
3) there is no power of 2 in the denominator which indicates that this is not dual site mechanism but we can observe that there is multiplication of partial pressures of a and b so this should be an example of eley- rideal mechanism.
4) here there is only one single site s and also a and b are adsorbed on this single site and there is a reaction between a and b to form c and d so the correct option is (A)
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