Process Equipment and Plant Design
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

Trouton's rule is applicable
Sensible heat differences are small, because the temperature changes from tray to tray is small
Liquid/vapor loading across the column remains constant
All of these

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Process Equipment and Plant Design
Pick out the wrong statement about routing of fluids in a shell and tube heat exchanger.

The viscous fluid should be routed through the shell side
Lower flow rate fluid should be routed through the shell side
Higher pressure fluid stream should be routed through the shell side
The corrosive and fouling fluid should be preferably routed through the tubes

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