_Film coefficient is defined as Inside diameter of tube$?

1.	_Film coefficient is defined as Inside diameter of tube$?
A.	Equivalent thickness of film
B.	Thermal conductivity Equivalent thickness of film Specific heat ‚àö√≥ Viscosity
C.	Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity
D.	Film coefficient ‚àö√≥ Inside diameter Thermal conductivity
Answer» C. Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity

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_Film coefficient is defined as Inside diameter of tube$?

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