Process Equipment and Plant Design
In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower.

Vapour molecular weight
All of these
Pressure and temperature
Molal flow rate of vapour

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Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

All of these
Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter
O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres
Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

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