1. ## Density of water

When temperature increases, would the density of water go up or down? now, I know ice is less dense than water, but doesn't the density of water also go down once heated? If that's the case, when does it increase? That's mostly just a side question, lol, the main question is would it definitely go up or down when heated.

2. Originally Posted by Chinnie15
When temperature increases, would the density of water go up or down? now, I know ice is less dense than water, but doesn't the density of water also go down once heated? If that's the case, when does it increase? That's mostly just a side question, lol, the main question is would it definitely go up or down when heated.
You know that $d=\frac{m}{v}$, so... what do you think will happen when the water is heated?

3. Originally Posted by Chinnie15
When temperature increases, would the density of water go up or down? now, I know ice is less dense than water, but doesn't the density of water also go down once heated? If that's the case, when does it increase? That's mostly just a side question, lol, the main question is would it definitely go up or down when heated.
From 0 to 4 deg C, when heated, water was get MORE dense. Water is most dense at about 4 deg C.

Above this point heated water will expand and get LESS dense.

Below 0 deg C, water normally freezes (becomes solid);
however under special circumstances, as water is cooled to below that temperature the density of water will decrease.

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