Q. Collision theory gives the rate constant for bimolecular reaction as

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Q. The temperature dependence of reaction rate constant (K) by Arhenius law is given by

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Q. For a __________ order chemical reaction given below, the fractional conversion of reactant 'A' is proportional to time.

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Q. Consider a reversible exothermic reaction in a plug flow reactor. The maximum and minimum permissible temperatures are Tₘₐₓ and Tₘᵢₙ respectively. Which of the following temperature (T) profiles will require the shortest residence time to achieve the desired conversion.

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Q. Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as

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Q. The residence time distribution of an ideal CSTR is

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

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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

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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)

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

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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

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

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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).

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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)

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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.

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

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Q. Pick out the correct statement.

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

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Q. Pick out the correct statement

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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

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