This is a fact and I would like to know why hot water is heavier.
2007-08-05 16:34:15 · 5 answers · asked by Agent Fox 6 in Science & Mathematics ➔ Physics
Be more clear. Do you mean hot water is denser or the same number of molecules gains weight when heated? The first is true for a narrow range of temperatures above freezing, and the second is technically true, but only to an immeasurably small degree due to special relativistic effects.
2007-08-05 16:40:38 · answer #1 · answered by Dr. R 7 · 2⤊ 0⤋
It's not true. Water expands when heated, making it less dense, which is why hot water rises to the top of the lakes and oceans.
Water is the only substance, however, which after reaching it's maximum density at something like .4% centigrade, expands as it freezes, so Ice floats.
2007-08-06 00:07:04 · answer #2 · answered by noonehomebutlightsareon 2 · 1⤊ 0⤋
My guess would be cold water makes thing contract, while Hot Water makes things Expand.
2007-08-05 23:43:35 · answer #3 · answered by donmorano 2 · 0⤊ 0⤋
Molecules gain mass and weight when heated or super heated, but the outward force of the expansion would prove to be a more measurable item compared to weight.
2007-08-05 23:52:18 · answer #4 · answered by JALISCO 2 · 0⤊ 0⤋
heavyness is relative and theorectically neither would be heavier than the other the densities would be the same.
2007-08-05 23:49:43 · answer #5 · answered by Brandon 3 · 0⤊ 0⤋