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Posted by on Saturday, February 12, 2011 at 4:16pm.

the air in a steel belted tire is at a gauge pressure of 29.8 psi at a temperature of 20 degrees celsius. After the tire is driven out fast on a hot road, the temperature in the tire is 48 degrees celsius. What is the tires new gauge pressure.

Can someone please explain this step by step for me? thank you =)

  • Chemistry - , Saturday, February 12, 2011 at 5:46pm

    Use (V1/T1) = (V2/T2)
    Don't forget T must be in Kelvin.

  • Chemistry - , Saturday, February 12, 2011 at 7:52pm

    but do you have to do something special since its gauge?

  • Chemistry - , Saturday, February 12, 2011 at 9:56pm

    I don't have the slightest idea why I wrote that formula. There is no volume to be found but I stuck volume in the equation. I should have written
    P1/T1 = P2/T2.
    Since the problem starts with psig and ends with psig, I don't think the units should be changed.

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