Heat Transfer
For a perfectly transparent surface (like gases), the

Transmissivity = 1
Absorptivity = 0
Reflectivity = 0
All of these

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Heat Transfer
Leidenfrost point is a term concerned with the

Boiling of a liquid on a hot surface
Condensation of the saturated vapor on a cold surface
Concentration of a corrosive solution by evaporation
Heat transfer between two highly viscous liquids

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