expands.
Question makes no sense - unanswerable. Nothing changes mass when heated or cooled.
Expands
No, it expands- this is because when the particles in the water are heated they move around and cause the water to expand. When water is cooled it contracts. This is because the particles in the water and coming together. When water is cooled it usually becomes ice or expands a little. The volume of ice is 4x greater than water, therefore it actually expands, rather than contracting.
No. When water is cooled it contracts up to 4 degrees Celsius and then it begins to expand till 0 degrees Celsius. This is called the anomalous expansion of water.
Pressure. Heating things expands them so when the water underground is heated is expands and pushes to the surface
Contracts.
Sort of. In the temperature range of 0-4 Degrees Celsius water contracts when heated and expands when cooled. Outside of this temperature range it behaves normally.
what changes take place when water is heated or cooled
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%
what changes take place when water is heated or cooled
Almost everything expands when heated. There are a very few substances that contract when heated under certain conditions... water, for example, contracts very slightly when it is headed from 0 degrees to 4 degrees Celsius.
water expands on heating and contracts on cooling because when water is heated the molecules are closely packed and they overflow but when cooled they are loosely packed therefore they dont overflow. it is as simple as that.
Only one liquid expands when heated and thats water the most common liquid.
Water has three states Solid (ice) liquid (water) gas (steam) When water is heated it expands and when it is cooled it contracts until about 4 degrees Celsius when it begins to expand again. So the answer to your question is it depends on what temperature the water is. If it is a liquid and over 4 degrees then it will expand. If it is not frozen but somewhere between 0 and 4 degrees it will contract until about 4 degrees and then expand. Under 0 degrees it is ice not water, over 100 degrees it is steam not water.
All liquids expand when heated. e.g. Mercury in a thermometer. One exception may be water when heated form 0 to 4 degrees Celsius.
Question makes no sense - unanswerable. Nothing changes mass when heated or cooled.
Yes. Hot water expands a little, so that the same mass takes up more room; Therefore, the density decreased. It's generally true that things expand when heated and contract when cooled. For water, this is true for temperatures about 4 degrees Celsius/39 degrees F. When going below 4C/39F, water begins to form a crystalline structure as it freezes, and expands by about 15% to become ice.