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

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

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Process Equipment and Plant Design
Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Heat of mixing of normal liquid is assumed to be zero
Molar latent heat of the two components are equal
Reflux is not a saturated liquid
Sensible heat changes for vapour & liquid are negligibly small

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