[time-nuts] Mass vs BTU Function
mikes at flatsurface.com
Fri Jan 28 01:31:52 UTC 2011
At 07:53 PM 1/27/2011, jimlux wrote...
>I did do some googling and found this interesting statement in
>Another way of stating this, is that the volume-specific heat capacity
>(volumetric heat capacity) of solid elements is roughly a constant.
I'll admit that I'm prone to citing Wikipedia, but this is one case
which clearly shows they're not authoritative. For just commonly
available solid elements, there's a greater than 2:1 range. For
time-nuts used to dealing with 10e-12 or smaller, that's no where near
a "constant." Below are numbers I posted a bit ago for "hardware store"
stuff, and one could no doubt find a much greater range in compounds,
especially if you ignore availability/cost:
(substance) (specific heat) (density) (heat capacity?)
( ) (kJ/kg K) (g/ml^3)(kJ/l K)
Al 0.91 2.7 2.5
Cu 0.39 9.96 3.9
Pb 0.13 11.36 1.5
Fe 0.46 7.87 3.6
H2O 4.2 1.0 4.2
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