Point Name: Click to Change

The Anomaly of Water

The anomaly of water is a concept in physics that describes a unique phenomenon that characterizes the Water volume in the solid state (ice) larger than in a liquid form. This is contrary to most materials feature a solid-state contracting

Usually material tends to shrink with the drop in temperature and expands with the rise of temperature. Therefore, volume of most materials decreases with decrease in temperature, and density increases. Any material in liquid form has a characteristic temperature, where it freezes (turns from liquid to solid). Even after becoming solid volume will continue to decline as its temperature will continue to fall. This is because the temperature is a measure of the internal energy of the material particles, ie the extent of their movement and vibration. Drop in temperature means reducing the amount of pushing and internal collisions between particles. In solid form, the particles' movement is very slow that they almost do not change the relative position and arranged side by side in certain defined structure and dense. What makes water unique is the drop of temperature which is actually leading to a drop in volume, but only up to a limit of about 4 ° C. At this temperature the water volume of the liquid is the smallest. When continuing in cooling below 4 °C, it begins to grow back in volume, up till freezing and turning sold ice at a temperature of zero degrees Celsius. But this is only one part of the anomaly. The second part is that in Freezing point the volume of ice is 10 percent larger than the volume of water from which it was created. Unlike other materials, the volume continues to increase with a decrease in temperatures below freezing.

Ice Density at 0 ° = 0.917 grams per cubic centimeter-

Water density at 0 ° = 0.998 grams per cubic centimeter-

the most water density at 4°=1 grams per cubic centimeter-