Lewis number (Le) is defined as the ratio of:

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Physics · Transport Phenomena

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Thermal diffusivity (molecular diffusivity of heat) to mass diffusivity (molecular diffusivity of mass)

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Answer 1

Molecular diffusivity of momentum to molecular diffusivity of heat

Answer 2

Molecular diffusivity of momentum to molecular diffusivity of mass

Answer 3

Thermal diffusivity (molecular diffusivity of heat) to mass diffusivity (molecular diffusivity of mass)

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