Monday, December 12, 2011

Type of heat transfer in melting, warming, boiling of water?

FIRST GOOD ANSWER GETS 10 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!





I know what the 3 types of heat transfer are, ( convection, conduction, radiation ) but i don't understand which one you associate with each the melting, warming, and boiling of wateR!?? Please explain!|||Melting - conduction because ice is a solid, and heat travels through solids by conduction.





Warming - convection; heat travels through liquids and gases by convection currents.





Boiling - When water boils, the heat is carried into the air by the steam; heat is released into the air as the steam condenses, and when the water falls back to the ground, it re-absorbs that heat to become steam, which again travels up into the air with the heat, producing a convection current. So, you could say that the heat transfer is convection.|||melting involves conduction because the material is solid





warming and boiling involve convection because the substances are liquids or gases

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