Heat Transfer
Water always boils when its

Temperature reaches 100° C
Vapour pressure equals 76 cm of Hg
Saturated vapour pressure equals the external pressure on its surface
Saturated vapour pressure is less than the atmospheric pressure

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Heat Transfer
Leidenfrost point is a term concerned with the

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

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