What is the science of boiling water?

Question

It's for a science project.

10 points to best answer

Answer 1

Phase change, from a liquid to a gas.  There are energy changes associated with phase changes.  THat is why the temperature of boiling water does not increase even though you are pumping heat into it.  That heat is going into the phase change rather than increasing the temperature.  This is sometimes referred to as the latent heat of boiling or of evaporation.  There is a similar latent heat associated with the phase change from solid to liquid (freezing or melting, depending on which way its going).  You can, of course, go directly from solid to gas or gas to solid as well.  The example that is most familiar to people is dry ice, solid CO2 going to a gas without going to a liquid.  There are a lot of interesting scientific things going on with phase changes.  Do some of your own research on crystallization, distillation, sublimation.  good luck

Answer 2

There is a discipline in chemistry called "ebullioscopy" in which we determine the molar mass of an unknown solute by observing what effect it has on the boiling point of water. That's an answer...

Stupid spell-checker doesn't recognize the word...

Answer 3

An investigation on the effects of solid particles on boiling heat transfer enhancement is performed. The range of particle diameter is from millimeter to nanometer. The experimental results show that boiling heat transfer can be enhanced greatly by adding the solid particle into the liquid whether in fixed particle bed or in fluidized particle bed. The boiling enhancement is closely related to the particle size, the initial bed depth and the heat flux applied. The experiments show that boiling characteristics are greatly changed when a particle layer is put on the heated surface. The major effects of fixed particle bed on nucleate pool boiling heat transfer are the nucleation, bubble moving and thermal conductivity effect. A boiling heat transfer correlation is obtained to predict the boiling heat transfer coefficients in a liquid saturated porous bed. A volumetric convection mechanism of boiling heat transfer enhancement by fluidized particles is proposed. The calculated results from the model suggested in this paper agree reasonably with the experimental values.

Answer 4

phase change: liquid to gas

100°C

212°F

just look on Google, it should be easy to find....

Answer 5

As the water heats up, the molecules move faster and faster and farther apart until they literally jump out of the pot, changing state from a liquid to a gas (vapor). The property of matter (whether it is considered a solid liquid or gas) is determined by how fast the molecules move and their distance away from each other, as well as its shape. A solid has a definite shape, the molecules are close together and barely move. A liquid takes the shape of its container and the molecules are farther apart, and moving more, depending on the energy (in the case of boiling water, the energy is heat energy) added. Finally, matter in the form of a gas, although is still takes up space, has no definite shape and the molecules are very far apart and move quickly. Hope that helps for your project=)