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Homework Help: Weather Station question

  1. Feb 21, 2010 #1
    A weather station at the airport measured a station pressure of 1014 mb. The density of dry air is 1.3 kg/m^3. The gas constant for dry air, R, is 287 J/kg-K. Calculate the temperature of the dry air at the airport.

    1 mb = 100 J/m ^3


    The surface pressure at the airport then decreased to 1010 mb but the air temperature reamined the same (as the answer in #1). Calculate new density of air.

    *I'm really confused and I would greatly appreciate it if someone can walk me through this problem

    This is what I have so far, I know you have to use the Ideal Gas law
    P= p R T

    1014 mb = 1.3 kg/m^3 x 287 j/kg-k x T
    Last edited: Feb 21, 2010
  2. jcsd
  3. Feb 21, 2010 #2
    Hey, that looks really good so far! Surely you know enough algebra to take it from there. Just as a comment though, make sure you watch your units!
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