At the right is a container of piss system with several ice cubes in it (well just show one ice cube for simplicity). Weve started with frigidity tap weewee at 10°C (about 50°F) and ice at 0°C, and weve placed the mixture in a nice, insulated cup that prevents the flow of heat into the cup from the foreign world.
Water molecules are constantly escaping from the solid ice into the melted water (melting). At the same time, water molecules are world captured on the surface of the ice (freezing). But because the water molecules in the fluent are moving quickly (they are at elevated temperature compared to the ice), they cant easily be captured by the surface of the ice, so not very many of them freeze.
Freezing occurs at a slower rate than melting.
Because there are fewer water molecules creation captured by the ice (being frozen) than there are ice molecules turning to water, the net result is that the add together of water increases, and the amount of ice decreases. Now as the ice melts, what happens to the temperature of the water?
Of course, the water temperature locomote because weve put a cold thing into the warm up water. But much more importantly, the water temperature falls because energy is removed from the water to melt some of the ice. In fact, if we start with enough ice in the container, eventually the water in the container will reach 0°C, along with the be ice.
The phase transition from a solid to a liquid extracts energy from the liquid.
In the picture at the right, the water in the container has finally reached 0°C along with the remaining ice. Molecules of water are still escaping from the solid ice into the liquid water (melting), and molecules of water in the liquid are still being captured...If you want to get a full essay, order it on our website: Orderessay
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