A batch reactor is characterised by ____________________?

Byadmin February 20, 2019August 23, 2021

A batch reactor is characterised by ____________________?

A. Constant residence time
B. Variation in extent of reaction and properties of the reaction mixture with time
C. Variation in reactor volume
D. Very low conversion

Chemical Reaction

Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually ________________ the concentration of catalyst, if it does not entail a chain mechanism?

Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually ________________ the concentration of catalyst, if it does not entail a chain mechanism?

A. Proportional to
B. Independent of
C. Inversely proportional to
D. Proportional to the square of

Read More Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually ________________ the concentration of catalyst, if it does not entail a chain mechanism?
Chemical Reaction

The rate of a homogeneous reaction is a function of__________________?

The rate of a homogeneous reaction is a function of__________________?

A. Temperature and pressure only
B. Temperature and composition only
C. Pressure and composition only
D. All temperature, pressure and composition

Read More The rate of a homogeneous reaction is a function of__________________?
Chemical Reaction

When the reaction is dominated by intraparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as ________________?

When the reaction is dominated by intraparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as ________________?

A. nD = (n + 1)/2
B. nD = n/2
C. nD = n + 1
D. None of these

Read More When the reaction is dominated by intraparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as ________________?
Chemical Reaction

A stirred tank reactor compared to tubular-flow reactor provides____________________?

A stirred tank reactor compared to tubular-flow reactor provides____________________?

A. More uniform operating conditions
B. Permits operation at the optimum temperature for a long reaction time
C. Higher overall selectivity for a first order consecutive reaction
D. All A., B. and C.

Read More A stirred tank reactor compared to tubular-flow reactor provides____________________?
Chemical Reaction

For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?

For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?

A. 1
B. > 1
C. ∞
D. ≥ 1

Read More For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?
Chemical Reaction

In case of _____________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds?

In case of _____________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds?

A. Catalytic
B. Parallel
C. Series
D. Auto catalytic

Read More In case of _____________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds?

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