Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by keff = (kkg)1/2 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = k + kg keff = (kkg)1/2 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = k + kg ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Insensitive to temperature changes Always irreversible Highly temperature sensitive Mostly irreversible Insensitive to temperature changes Always irreversible Highly temperature sensitive Mostly irreversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The irreversible reaction, X → Y, is the special case of the reversible reaction, X ⇋ Y, in which the Concentration of All of these Equilibrium constant is infinite Fractional conversion of Concentration of All of these Equilibrium constant is infinite Fractional conversion of ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be 0.693τ 0.5τ 2τ τ/0.693 0.693τ 0.5τ 2τ τ/0.693 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ is the response curve for a step input signal from a reactor. I-curve S-curve C-curve None of these I-curve S-curve C-curve None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure? N + 3H₂ ⇋ 2NH₃ PCl3 + Cl₂ ⇋ PCl5 2SO₂ + O₂ ⇋ 2SO₃ N₂ + O₂ ⇋ 2NO N + 3H₂ ⇋ 2NH₃ PCl3 + Cl₂ ⇋ PCl5 2SO₂ + O₂ ⇋ 2SO₃ N₂ + O₂ ⇋ 2NO ANSWER DOWNLOAD EXAMIANS APP
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