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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Q. Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?

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Q. For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

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Q. Fluid flow in a real packed bed can be approximated as __________ model.

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Q. For series reaction, the relative yield

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Q. Given,

3H₂ + CO = CH₄ + H₂O, Kₚ = 10^1.84 and,
4H₂ + CO₂ = CH₄ + 2H₂O, Kₚ = 10^1.17

the Kₚ for the reaction CO + H₂O = CO₂ + H₂ is

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Q. Differential method for analysing the kinetic data is used

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Q. In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is

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Q. The reaction in which the rate equation corresponds to a stoichiometric equation, is called a/an __________ reaction.

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Q. The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is

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Q. For a zero order reaction, the concentration of product increases with the

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Q. Pick out the wrong statement.

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Q. Effectiveness factor of a catalyst pellet is a measure of the __________ resistance.

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Q. The rate expression for a heterogenous catalytic reaction is given by, - rᴀ = K.Kᴀ Pᴀ(1 + Kᴀ.Pᴀ + Kʀ.Pʀ), where K is surface reaction rate constant and Kᴀ and Kʀ are absorption equilibrium constants of A and R respectively. If Kʀ Pʀ >> (1 + Kᴀ Pᴀ), the apparent activation energy Eᴀ is equal to (given E is the activation energy for the reaction and ΔHʀ and ΔHᴀ are the activation energies of adsorption of R and A)

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Q. The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the

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Q. A catalyst is said to be a negative catalyst, if it

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Q. For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance.

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Q. Pure ethanol vapor is fed to a reactor packed with alumina catalyst, at the rate of 100 kmole / hr. The reactor products comprise: ethylene :95 kmole / hr, water vapour: 97.5 k mole / hr and diethyl ether :2.5 kmole/hr. The reactions occuring can be represented by:

C₂H₅OH → C₂H₄ + H₂O
2C₂H₅OH → C₂H₅ - O - C₂H₅ + H₂O

The percent conversion of ethanol in the reactor is

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Q. Pick out the wrong statement.

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