Tuesday, January 28, 2014

Why does water expand when it is frozen?

Water behaves differently than almost all other fluids because it runs when it is frozen. As a liquid is cooled down the scraps move more tardily allowing the lovable forces betwixt them to become stronger. Eventually, these forces become strong equal to require the molecules in a fixed position (they tush relieve vibrate but not change their relation positions) and the liquid becomes a solid. The molecules in the solid have r severallyed an optimum occludeness to each other and the solid usually has a very ordered arrangement of molecules in what is known as a crystallization latt scum. Water is exceptional because it can maximize the enthralling forces between its molecules with an arrangement where each irrigate system molecule is surrounded by only four other piddle molecules (If you think of a molecule as spherical - exchangeable an orange - you willing realize that you could get as umteen as 12 molecules nigh it if getting as close together as possibl e was all that was required! - good a precise note. ;). In many solids this close wadding is what happens - but water has an exceptionally strong type of loss leader between the molecules (known as hydrogen adhesioning) and each hydrogen bond is at least 10 times stronger than the other types of attractive forces that hold molecules together. The uttermost number of hydrogen bonds a water molecule can form is 4 and in ice each water molecule is doing just that. Water expands to around 9-10% its original volume. So the attractive forces are maximized even though the molecules are forming a very open lattice structure, make the water to expand and form a block of ice. If you necessitate to get a full essay, order it on our website: OrderCustomPaper.com

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