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Chemical Reaction Engineering

Chemical Reaction Engineering
Bulk diffusion in catalyst pore __________ with increase in pressure.

Remains unchanged
Increases
Decreases
Increases exponentially

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Chemical Reaction Engineering
The reactions with low activation energy are

Non-spontaneous
Always spantaneous
Fast
Slow

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Chemical Reaction Engineering
If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst

Porosity is very important
Internal surface area is utilised efficiently
None of these
Porosity is of less importance

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Chemical Reaction Engineering
Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A 3B. Mole fraction of A in the exit stream is

43833
43835
43834
43832

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Chemical Reaction Engineering
A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Polymerisation of ethylene
Methanol synthesis
Dehydration of ethanol
Reformation of methane

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Chemical Reaction Engineering
A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

32
3
1
43833

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