Question

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: (b).momentum diffusivity to thermal diffusivity.

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Q. Prandtl number is the ratio of

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