Q. A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

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Q. A catalyst inhibitor

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Q. In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO₂ to SO₃ is accomplished by a __________ reaction.

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Q. If the rate of a chemical reaction becomes slower at a given temperature, then the

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Q. The conversion Xᴀ and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line ?

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Q. The rate of the reaction, X → Y, quadruples when the concentration of 'X' is doubled. The rate expression for the reaction is, r = K Cₓⁿ, the value of 'n' in this case will be

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Q. The rate at which a chemical substance reacts is proportional to its

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Q. A plug-flow reactor is characterised by

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Q. For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good.

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Q. Space velocity

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Q. The rate of the chemical reaction A → B doubles as the concentration of A i.e.., Cᴀ is doubled. If rate of reaction is proportional to Cᴀⁿ, then what is the value of n for this reaction ?

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Q. A reaction which is catalysed by a base is catalysed by all substances which have a tendency to

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Q. For a homogeneous reaction of nth order, the dimension of the rate constant is given by

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Q. The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is

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Q. The 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt

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Q. To maximise the formation of R in the simultaneous reaction

A + B → R , rʀ = 2Cᴀ^0.5.Cʙ²
A + B → S , rₛ = 1.5 Cᴀ . Cʙ

We should have

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Q. A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to

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Q. A stirred tank reactor compared to tubular-flow reactor provides

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Q. A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is

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Q. Rate of an autocatalytic chemical reaction is a function of

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