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Did you know? That cold water is lighter than hot water .. !!!

Did you know?
That cold water is lighter than hot water .. !!!




When you heat up water, the water molecules start moving around faster and faster. ... Because there's more space between the molecules, a volume of hot water has fewer molecules in it and weighs a little bit less than the same volume of cold water. So hot water is less dense than cold water.
Which is heavier cold water or hot water?
What happens when you add hot water to cold water?
Which boils faster hot water or cold water?
Which weighs more cold water or hot water?
Cold water does not boil faster than hot water. ... As a result, cold water will be absorbing heat faster while it is still cold; once it gets up to the temperature of hot water, the heating rate slows down and from there it takes just as long to bring it to a boil as the water that was hot to begin with.
The "counter argument" you link to cites E = mc^2 and the higher energy content of hot water. First off, note the "c^2" in that formula. That's the speed 
Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. Cold water is more dense and will sink in room-temperature water.
Question was: Why is hot water heavier than cold water? If you take 1kg of water just above the freezing point, and you heat it up to just below the boiling point ..
The Mpemba effect, named after Erasto Batholomeo Mpemba (b.1950) in 1963, is the ... The phenomenon, when taken to mean "hot water freezes faster than cold", is difficult to reproduce or confirm because this statement is ill-defined.
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The same volume of hot water is lighter than cold water, not heavier. The reason for the decrease in density as the temperature increases is that the water molecules cannot get so close together at higher temperatures. The molecules have more kinetic energy and take up more space as they move around in the liquid.
Which one is heavier cold water or hot water?
Why is cold water more dense than hot water?
Why hot water can float on top of cold water?
What happens when you mix hot and cold water?
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