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Chemical Reaction Engineering

Chemical Reaction Engineering
Half life period of a first order irreversible reaction A → B is

Ln 2/k
Ln 0.5/k
Ln k/2
K/2

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Chemical Reaction Engineering
The catalyst in a second order reversible reaction increases the rate of the forward reaction

And decreases that of backward reaction
And backward reaction equally
Only
To a greater extent than that of the backward reaction

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Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Variable fluid density systems
Gas reactions with changing no. of moles
Non-isothermal gas reaction
Constant fluid density systems

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Chemical Reaction Engineering
For an ideal plug flow reactor, the value of Peclet number is

∞
0
10
1

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Chemical Reaction Engineering
In a reversible reaction, a catalyst increases the rate of forward reaction

To a greater extent than that of the backward reaction
Only
And the backward reaction equally
And decreases that of the backward reaction

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Chemical Reaction Engineering
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.

Either A, B or C
Chemical reaction
Diffusion through ash layer
Film diffusion

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