The following gas phase reactions are carried out isothermally in a CSTR.A → 2R ; r₁ = K₁pA ;K₁ = 20mole/(sec.m³ bar)A → 3S ; r₂ = K₂ pA ;K₂ = 40mole/ (sec.m³ .bar)What is the maximum possible value of FR(mole/sec.) ? 43833 43832 2 43864 TRUE ANSWER : ? YOUR ANSWER : ?
A catalyst is said to be a negative catalyst, ifit Does not initiate the reaction Retards the rate of reaction All of these Reduces the value of equilibrium constant TRUE ANSWER : ? YOUR ANSWER : ?
For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good. τ and θ are always equal τ = θ , when the fluid density changes in the reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , for a non-isothermal reactor TRUE ANSWER : ? YOUR ANSWER : ?
Find a mechanism that is consistent with the rate equation and reaction given below: 2A + B → A₂B, ( - rA) = k.CA.CB A + A ⇋ AA;AA + B → A₂B A + B ⇋ AB ; AB + A → A₂B A + B ⇋ AB;AB + A → A₂B A + A ⇋ AA;AA + B → A₂B TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a characteristic of an ideal plug flow reactor? Axial dispersion Flat velocity profile None of these Uniform mixing TRUE ANSWER : ? YOUR ANSWER : ?
If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to (E + ED) where ED is activation due to diffusion ED/2 The intrinsic activation energy E (E + ED)/2 TRUE ANSWER : ? YOUR ANSWER : ?
A batch reactor is Least expensive to operate for a given rate Suitable for liquid phase reactions involving small production rate Suitable for gas-phase reactions on commercial scale Most suitable for very large production rate TRUE ANSWER : ? YOUR ANSWER : ?
A catalyst promoter All of these Improves the activity of a catalyst Acts as a catalyst support Itself has very high activity TRUE ANSWER : ? YOUR ANSWER : ?
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by A step function A ramp function A dirac delta function None of these TRUE ANSWER : ? YOUR ANSWER : ?
The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the Reaction may be elementary with molecularity of 2 Reaction is elementary with a molecularity of 2 Molecularity of the reaction is 2, but the reaction may not be elementary Reaction is elementary but the molecularity may not be 2 TRUE ANSWER : ? YOUR ANSWER : ?