Does drinking cold water technically mean you drink more water

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Since water molecules are closer together when colder so more “water” in a given amount of space(or molecules in general I think I could be wrong, I could be wrong about this whole thing) could it be reasoned that drinking cold water results in drinking more water than hot water? And if not how come?

In: Chemistry

8 Answers

Anonymous 0 Comments

Water actually expands as it freezes, so it’s more likely that you drink slightly less water when it’s cold.

Anonymous 0 Comments

Yes. If you drink one cupful of cold water, you’ve consumed something like 2% more water than if you drink one cupful of hot water.

Of course, that probably means you won’t get thirsty again quite as soon, so it probably won’t result in you drinking more water *over the long run*. But there was, indeed, more water in that particular cup.

Anonymous 0 Comments

Cold water is denser than warm water, so yes, in a very technical sense. If you drink the same volume of cold water vs the same volume of warm water the cold water had more water molecules in it and would have weighed very slightly more. The difference is hardly noticeable – [“about 4 tenths of one percent between near-freezing and 30 degrees Celsius (86 degrees Fahrenheit),”](https://sciencing.com/hot-less-dense-cold-water-6326030.html) but yeah technically if you want to consume the most water per volume you should drink water that is near freezing

Interestingly though the least efficient way to drink water is by eating ice, because the density of (typical) ice is even less than that of boiling water. Also, it will make your mouth very cold

Anonymous 0 Comments

Yes, for a constant volume, colder water will weigh *slightly* more than warm water. The difference is negligible in the amounts you normally drink. At 4degC water weighs 1g/cm^3 and at 49.8 degF it weighs 0.9887 g/cm^3. So if you drink 1L of water at 4C you get 1000 grams of water, if the water is 49.8C you get 988.7 grams.

Anonymous 0 Comments

Depends on how you define an ‘amount’ of water.

If you have two one-litre jugs of water at different temperatures, they both contain the same volume of water, but the colder one contains more water molecules.

So you’re still drinking a litre of water, but you get more bang for your buck in terms of molecules with the colder jug.

Anonymous 0 Comments

Yes, until around fridge temperature water.

[This chart](https://www.e-education.psu.edu/earth111/sites/www.e-education.psu.edu.earth111/files/Module2/Earth111Mod1Graph2.png) is the mass of water in grams per milliliter (density). Higher values mean you drink more water for the same volume.

Warm water is less dense, so the same volume is less water. 1 liter of boiling water is 950 grams, 1 liter of refrigerated water is 1 kilogram or 1000 grams.

To put this in context, if you poured 1 liter of boiling water and refrigerated water and then put them both in the fridge, the water poured boiling would be around 1 American shot glass lower in volume after cooling.

Once you go below 4 degrees C/39 degrees F (average fridge temperature), it reverses. So ice cold water is less water per volume than refrigerated, though by a very small amount (999 grams).

Ice has a massive jump down due to freezing, going to around 900-920 grams per liter.

Anonymous 0 Comments

Instructions unclear, ate ice cubes to get more water per water, ice shard stabbed my esophagus 

Anonymous 0 Comments

So when the water gets warmer inside your body, does that mean you’re getting less water now too?