Prandtl number is the ratio of

1.	Prandtl number is the ratio of
A.	momentum diffusivity to mass diffusivity.
B.	momentum diffusivity to thermal diffusivity.
C.	thermal diffusivity to mass diffusivity.
D.	thermal diffusivity to momentum diffusivity.
Answer» C. thermal diffusivity to mass diffusivity.

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Prandtl number is the ratio of

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