2007-02-14 04:39:08 · 3 answers · asked by JAMES 1 in Science & Mathematics ➔ Physics
Isn't this an approximation of the black box heat absorbstion/radiation at low temperatures?
What do you want to do with it, and how would you calculate "a"?
2007-02-14 04:52:24 · answer #1 · answered by Ernie 4 · 0⤊ 0⤋
For normality temperatures, you should use PV = nRT
P = pressure (i.e. atmospehric pressure)
V = Volume (of the substance - so about 1/4 litre)
n = no. of moles within the substance
R = Gas Constant
T = Temperature
The equation you are using looks like Wein's displacement law for Thermal physics - used for Blackbody radiation of stars etc..
Yes, height does vary with atmospheric pressure, but stars are different from planets as stars are massively hot whereas only the centre of the Earth is molten.
2007-02-14 06:15:28 · answer #2 · answered by Doctor Q 6 · 0⤊ 0⤋
Sure. You can use it for a pile of sand too. Or your basement flooring.
What's your real question?
2007-02-14 04:48:54 · answer #3 · answered by T J 6 · 0⤊ 0⤋