What is the expression for the flow velocity of the falling film in a – McqOptions

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1.	What is the expression for the flow velocity of the falling film in a vertical condenser?
A.	U=\(\frac{\rho}{\mu}g(\delta-\frac{y^2}{2})\)
B.	U=\(\rho g(\delta y -\frac{y^2}{2})\)
C.	U=\(\frac{\rho}{\mu}g(\delta y-y^2)\)
D.	U=\(\frac{\rho}{\mu}g(\delta y-\frac{y^2}{2})\)
Answer» E.

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