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Homework Help: Tire pressure with temperature

  1. May 10, 2010 #1
    1. The problem statement, all variables and given/known data
    Air in an automobile tire is initially at -10oC and 190kPa. After the automobile is driven while the temperature rises to +10oC. Estimate the new pressure in the tire. State all assumptions that you make in providing this estimate.

    2. Relevant equations

    3. The attempt at a solution

    As the temperature increases the air pressure will increase in the tire

    I assume that the v n and r in the equation are constant in this problem

    therefore the P1/T1=P2/T2

    which is 190*283/263 = 204kPa

    I could be completely wrong here as there is no answer given to this question, can someone share some thoughts?
  2. jcsd
  3. May 10, 2010 #2
    Your analysis is correct.
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