# Recent content by de_Sitter

1. ### Thermal expansion of water

Thanks Chet, I'm not quite familiar with this dummy variable concept, but I'll do some reading. Thanks for the input.
2. ### Thermal expansion of water

So just to confirm I'm doing it right Chestermiller. I've fitted a curve to the data points given in some of the tables I linked earlier, which gives β(T). I then find the definite integral of this function over the temperature range (e.g 20°-100°C), then multiply by the initial volume? ΔV =...
3. ### Thermal expansion of water

Thank you all for your assistance. I'm a little rusty on my calculus, but Nidum's links are perfect for my purposes. Thanks again!
4. ### Thermal expansion of water

Hello, Thank you both for your replies. I'm a little unconvinced that using the coefficient of the base temperature is correct. Using 25L from 20 to 100°C with coefficient 0.000207 as per (http://www.engineeringtoolbox.com/volumetric-temperature-expansion-d_315.html) I get ΔV = 1.9715 L, which...
5. ### Thermal expansion of water

Hello, I'm trying to determine a way of calculating the thermal expansion of a volume of water. The formula I have come across is: ΔV = βV0ΛT The general consensus seems to be that water expands roughly 4% from 20°C to 100°C, or 4.2% from 4°C to 100°C...