Al ameen Posted October 27, 2009 Share Posted October 27, 2009 Hi every one. why water in glass is warmed and the glass cup warmed slowly? Link to comment Share on other sites More sharing options...
Fuzzwood Posted October 27, 2009 Share Posted October 27, 2009 Warmed by? A microwave? Microwaves only excite watermolecules. This means they start vibrating more (vibrating = energy = heat). This heat has to be transferred to the glass. Link to comment Share on other sites More sharing options...
RyanJ Posted October 27, 2009 Share Posted October 27, 2009 If you mean in a microwave then it goes like this. Water molecules tend to absorb photons in the microwave range and so are "excited" by them. As heat is a measure of somethings "excitement" (more correctly how quickly the molecules are moving) the water gets hotter. The glass gets warmer by conduction of the heat from the warmer liquid. Link to comment Share on other sites More sharing options...
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