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trofl 
Joined: 26 Apr 2006
Posts: 1297
Location: Ames, IA
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 Posted: Fri Jun 09, 2006 6:20 am Post subject: |
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| JCirri wrote: | | trofl wrote: | | (Why yes, I do enjoy physics...) |
I enjoy it too, I took many courses in physics and was thinking about minoring in it.
I'm trying to figure out what the equation in your avatar is. I see 'T' seems to be the temperature for some non ideal system (since Tf/pf = Ti/pi for ideal gas). R is the constant from nRT, cp is heat capacity at constant pressure. It looks to be an equation for some system changing in pressure and tempature, non-ideal, and directly tied in with heat gain/loss, but you can tell me for sure... |
I am minoring in physics 
Theta = Potential Temperature... given a parcel (or volume) of air at temperature T and pressure P, when the parcel is moved adiabatically to a pressure level of Po (usually defined at 1000mb), it will have this temperature represented by Theta. So this actually describes a system changing in pressure and temperature but without any heat transfer, although you're right about R and cp. We use this in meteorology a fair deal.
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JCirri
Joined: 04 Feb 2006
Posts: 4576
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| Posted: Fri Jun 09, 2006 6:55 am Post subject: |
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| trofl wrote: | | Theta = Potential Temperature... given a parcel (or volume) of air at temperature T and pressure P, when the parcel is moved adiabatically to a pressure level of Po (usually defined at 1000mb), it will have this temperature represented by Theta. So this actually describes a system changing in pressure and temperature but without any heat transfer, although you're right about R and cp. We use this in meteorology a fair deal. |
Thank you, now my mind can rest.
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Genga
Joined: 19 Apr 2006
Posts: 2474
Location: Glasgow, Scotland
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| Posted: Fri Jun 09, 2006 1:29 pm Post subject: |
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its all Greek to me ;)
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Fly1ngV
Joined: 27 Feb 2006
Posts: 1081
Location: Chicagoland Illinois
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| Posted: Fri Jun 09, 2006 1:42 pm Post subject: |
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| You know, that has expanded my mind just a little bit. i understood everything from there until i saw the theta...i was thinking, WTF do angles have to do with tempratures and gas pressure. but you telling me abuot the potential tempreture expands my knowledge just a little. thats the kind of thing we don't learn in AP physics B |
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