When water freezes, it _____. expands and becomes more dense expands and becomes less dense contracts and becomes more dense contracts and becomes less dense
When water freezes, the molecules are locked into place in a crystal structure, and it turns into a hard solid, or ice. The ice is hard because unlike in water, where the individual H2O molecules ...
When water freezes, the molecules slow down and assume a fixed position, although not quite in the way that one might think. Water is made of molecules with two hydrogen atoms and an oxygen atom, but those molecules don't just stop moving as units.
Water is a rare compound that expands when frozen. 1. Log in Join now 1. Log in Join now High School. Physics. 5 points When water freezes, it _____. Ask for details ; Follow Report by S4hasb1abygeisaMadis 02/24/2016 Log in to add a comment Answer. Answered by PDV +2. hendikeps2 and 2 more users found this answer helpful water expands and ...
Usually, when things freeze - in other words turn from a liquid into a solid - they shrink or get smaller.This is because, normally, if you make something hotter, it vibrates more. When it vibrates more, it tends to take up more space, so it tends to expand.So, logically, if you cool something down, then the particles should move more slowly, collide and bounce off one another
Water is one of the few exceptions to this behavior. When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.
This phenomenon, also known as the anomalous expansion of water is the reason why water bottles crack on freezing of the water inside. Another effect of this is the floating of ice cubes in water. It is because ice is of lesser density than water due to the reason mentioned above.
The fact that water expands upon freezing causes icebergs to float. The fact that water reaches a maximum density at about 4°C causes bodies of water to freeze on the top first. Then the further expansion as a part of the phase change keeps the ice floating with some 8% of its mass above the surface.
When water freezes some interesting things happen. A pond can transform into an ice skating rink, rain turns to snow, and ice cubes transform a pot of hot steaming tea into a refreshing summer beverage. Outside, the temperatures need to drop to 32 degrees F before rain freezes into snow flakes. Inside we fill up an ...
At What Temperature Does Water Freeze? The answer is far more complicated than it first appears—water doesn’t always turn to ice at 32 degrees Fahrenheit.