What method of heat transfer is used to heat water in a saucepan on a gas stove?

Heating of water in a saucepan on a gas stove occurs by thermal conduction.

Thermal conductivity is a type of heat transfer in which heat energy is transferred from a more heated body to a less heated body by contacting the bodies. A pan heated by a flame of a gas burner, through contact with water, transfers to it the amount of heat, and the water is heated.

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