The quantity hgD/k, where hg is the gas film coefficient, D is the diameter of the chamber and k denotes the gas conductivity is __________

The quantity hgD/k, where hg is the gas film coefficient, D is the di

1.	The quantity hgD/k, where hg is the gas film coefficient, D is the diameter of the chamber and k denotes the gas conductivity is __________
A.	Bartz number
B.	Froude number
C.	Nusselt number
D.	Prandtl number
Answer» D. Prandtl number

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