Q. In case of unimolecular type elementary reaction given below, plug flow reactor as compared to mixed reactor is

View solution

Q. The first order series reaction given below, is conducted in a batch reactor. The initial concentrations of A, B and C (Cᴀ₀, Cʙ₀, Cc₀ respectively) are all non-zero. The variation of Cʙ with reaction time will not show a maximum, if

View solution

Q. Effectiveness factor (E) of a catalyst pellet is defined as below. Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

View solution

Q. The mean conversion in the exit stream, for a second order, liquid phase reaction in a non-ideal flow reactor is given by

View solution

Q. Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then 't' for a first order reaction is given by

View solution

Q. Which of the following holds good for an elementary reaction given below:

View solution

Q. The following gas phase reaction is taking place in a plug flow reactor.
A stoichiometric mixture of A and B at 300 K is fed to the reactor. At 1 m along the length of the reactor, the temperature is 360 K. The pressure drop is negligible and an ideal gas behaviour can be assumed. Identify the correct expression relating the concentration of A at the inlet (Cᴀ₀), concentration of A at 1m (Cᴀ) and the corresponding conversion of A (X).

View solution

Q. The effectiveness factor for large value of Thiele modulus (L√(K/D₁)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D₁ = diffusion co-efficient, cm²/second)

View solution

Q. Following isothermal kinetic data are obtained in a basket type of mixed flow reactor for a porous catalyst. Determine the role of pore diffusion and external mass transfer processes.

View solution

Q. For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.

View solution

Q. Pick out the correct statement.

View solution

Q. The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

View solution

Q. Pick out the correct statement

View solution

Q. If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is

View solution

Q. For a zero order chemical reaction, the

View solution

Q. BET apparatus

View solution

Q. Radioactive decay follows __________ order kinetics.

View solution

Q. The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the __________ energy.

View solution

Q. The increase in the rate of reaction with temperature is due to

View solution

Q. A catalyst loses its activity due to

View solution