On 24 Apr 2006 14:55:29 -0700, "Bob" wrote:


Hi Dave:
Okay........... I agree, most likely wrong. Im not sure about the dead
part, although I felt like sunday morning. Thats what I was wondering.
Let try this: How is BTU related to Degrees Fahrenheit?

If air is compressed doesn't it get hot? If so, how measure it? But I
guess what caught my eye was when a previous post said that compressing
air does not create heat. But I may be pretty ignorant about the term
HEAT.

Confused Bob

If I remember correcty from chem class 35 years ago:

PV=NRT

pressure * volume = moles * R * Temperature

I don't really remember the units, but I think moles is a measure of
mass, R is a constant (.082?), temperature = degrees kelvin.
Google "ideal gas law" for better info. But solve for T and you get

T=PV/NR

The rest is left as an exercise for the student :-)

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