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

Liquid/vapor loading across the column remains constant
Trouton's rule is applicable
Sensible heat differences are small, because the temperature changes from tray to tray is small
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 corrosive and fouling fluid should be preferably routed through the tubes
Lower flow rate fluid should be routed through the shell side
The viscous fluid should be routed through the shell side
Higher pressure fluid stream should be routed through the shell side

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