For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of Bypass Ideal plug flow Dead zone Chanelling TRUE ANSWER : ? YOUR ANSWER : ?
In a reversible reaction, a catalyst increases the rate of forward reaction To a greater extent than that of the backward reaction And decreases that of the backward reaction Only And the backward reaction equally TRUE ANSWER : ? YOUR ANSWER : ?
The residence time distribution of an ideal CSTR is 1/τ (-t/τ) Exp(-t/τ) Τ exp (-t/τ) 1/τ exp (-t/τ) TRUE ANSWER : ? YOUR ANSWER : ?
Exothermic reactions are best carried out in A CSTR A plug flow reactor followed by CSTR CSTR followed by a plug flow reactor CSTR in series TRUE ANSWER : ? YOUR ANSWER : ?
If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle) Increases Remains unaltered Changes unpredictably Decreases TRUE ANSWER : ? YOUR ANSWER : ?
When an exothermic reversible reaction is conducted adiabatically, the rate of reaction Continuously decreases Passes through a maximum Passes through a minimum Continuously increases TRUE ANSWER : ? YOUR ANSWER : ?
The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the None of these Space time for parallel lines is different Space time for each parallel line is same Larger reactors have more space time compared to smaller ones TRUE ANSWER : ? YOUR ANSWER : ?
A catalyst is said to be a negative catalyst, ifit Reduces the value of equilibrium constant Does not initiate the reaction Retards the rate of reaction All of these TRUE ANSWER : ? YOUR ANSWER : ?
Given, 3H₂ + CO = CH₄ + H₂O, KP = 101.84 and, 4H₂ + CO₂ = CH₄ + 2H₂O, KP = 101.17the KP for the reaction CO + H₂O = CO₂ + H₂ is 103.01 10-0.67 10-3.01 L00.67 TRUE ANSWER : ? YOUR ANSWER : ?
What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? 3 1 Zero 2 TRUE ANSWER : ? YOUR ANSWER : ?