Chemical Reaction Engineering MCQs

The value of steric factor 'P' in the equation $${\text{k}} = {\text{PZ}}{{\text{e}}^{\frac{{\text{E}}}{{{\text{RT}}}}}}$$   usually ranges from

For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1 min^-1. What will be the conversion for a PFR with a space velocity of 0.2 min^-1?
(Assume that all the other operating conditions are the same for CSTR and PFR.)

During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en-dothermic reaction. The yield of SO₃ will be maximised, if the

In the converter of the contact process for the manufacture of H₂SO₄ the equilibrium conversion of SO₂ ____(i)____ with increase in temperature and ___(ii)___ with increase in the mole ratio of SO₂ to air.

The value of 'n' for a chemical reaction A → B, whose reaction rate is → C_Aⁿ, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is

In which of the following reactions the equilibrium will shift to the right, if the total pressure is increased?

A catalyst in a chemical reaction __________ free energy change in the reaction.

For the liquid phase parallel reactions:
R, r_R = K₁.C_A2; E₁ = 80 KJ/mole
S, r_S = K₁.C_A; E₂ = 120 KJ/mole
The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at