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Process Equipment and Plant Design

Process Equipment and Plant Design
Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower.

15-20
5-7.5
2.5-3.0
10-12.5

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.

Positive
Negative
None of these
No

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Process Equipment and Plant Design
The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

>1
1
Equal to the order of reaction
< 1

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Process Equipment and Plant Design
A claming section before the liquid flows into the downcomer is privided to

Cool the liquid before it flows down
Ensure better vapour-liquid contact
Reduce the discharge fluctuation
Permit release of entrained vapour in the liquid

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Process Equipment and Plant Design
for couplings and unions would be

350
200
Negligible
60

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Process Equipment and Plant Design
The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

S₁.S₂
S₁/S₂
S₂/S₁
1/S₁.S₂

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