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Chemical Reaction Engineering
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Questions

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Q301

Open question

Enzymes are destroyed, when the

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Q302

Open question

A catalyst is said to be a negative catalyst, ifit

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Q303

Open question

For a zero order chemical reaction, the

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Q304

Open question

The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst.

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Q305

Open question

From Arhenius law, a plot of log_e K versus

\frac{1}{T}

gives a straight line with a slope of

(- \frac{E}{R})

. The unit of

\frac{E}{R}

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Q306

Open question

Which of the following factors control the deactivation of a porous catalyst pellet?

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Q307

Open question

Velocity of a reaction depends upon the

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Q308

Open question

Inversion of cane sugar is an example of

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Q309

Open question

Most important characteristics of gas-liquid reactors are the

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Q310

Open question

The enzyme which can catalyse the conversion of glucose to ethyl alcohol is

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Q311

Open question

The irreversible reaction is a special case of reversible reaction, if the

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Q312

Open question

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

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Q313

Open question

In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

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Q314

Open question

A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield?

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Q315

Open question

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

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Q316

Open question

With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

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Q317

Open question

The fractional volume change of the system for the isothermal gas phase reaction, A → 3B, between no conversion and complete conversion is

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Q318

Open question

The rate constant of a chemical reaction decreases by decreasing the

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Q319

Open question

Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

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Q320

Open question

For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times.

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Chemical Reaction Engineeringpractice.

Chemical Reaction Engineering
practice.