Thread: It's getting windier.
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Old 08-01-2005, 13:17   #76
Theodoric
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Re: It's getting windier.
Quote:
Originally Posted by Raistlin
Also spotted the fact that I had claimed that the density will increase as the water is heated

Still not sure about the maths though. Does it neccessarily follow that a decrease in density of (say) 6% will lead to an equal (6%) increase in volume? It seems to make sense but my head's a bit foggy

Oh, and sorry if it seems like the thread's been hijacked. It hasn't, well - not really anyway
A 6% decrease in density will lead to an approximate 6% increase in volume.

v = volume, w = weight, d = density

v = w/d

For a weight w:

Initial volume, v1= w/d

Final volume, v2 = w/(0.94.d)

v2/v1 = 1/0.94 = 1.0638 (to 4 dp), that is an increase in volume of approx 6.38%
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