Chemical Engineering · all questions

Chemical Reaction Engineering
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Q341

Pick out the wrong statement.

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Q342

In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure?

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Q343

Non-catalytic fluid-solid reactions are represented by __________ model.

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Q344

Which of the following is the most suitable for very high pressure gas phase reaction?

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Q345

Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if

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Q346

As the chemical reaction proceeds, the rate of reaction

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Q347

Promoter . . . . . . . .

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Q348

A balanced chemical reaction equation conforms to the law of

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Q349

'N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.

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Q350

In a CSTR __________ varies with time.

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Q351

Batch process is preferred over continuous process, when the

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Q352

Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

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Q353

In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.

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Q354

Which of the following does not produce a change in the value of rate constant of a reaction?

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Q355

For a gaseous phase reaction, rate of reaction is equal to K.C_A.C_B. If the volume of the reactor is suddenly reduced to

\frac{1}{4}^{th}

of its initial volume, then the rate of reaction compared to the original rate will be __________ times.

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Q356

The rate of a gas phase reaction is given by K.C_A.C_B. If the volume of the reaction vessel is reduced to

\frac{1}{4}^{th}

of its initial volume, then the reaction rate compared to the original rate will be __________ times.

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Q357

The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is

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Q358

The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase __________ times, if the temperature rises form 10 to 100°C.

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Q359

BET apparatus is used to determine the

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Q360

The sequence in which three CSTR's of volumes 5, 10 and 15 m³ will be connected in series to obtain the maximum production in a second order irreversible reaction is

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