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    danyzavala's Avatar
    danyzavala Posts: 5, Reputation: 1
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    #1

    May 18, 2009, 02:41 PM
    What is the new value of the temperature?
    A balloon having an initial temperature of 16.4°C is heated so that the volume doubles while the pressure is kept fixed. What is the new value of the temperature?
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    May 18, 2009, 02:58 PM

    The general P,V,T equation (Boyles' + Charles' laws) can be written:




    In this case P1=P2 so this simplifies to



    Plug in the temperature (must be in Kelvins or Rankines -- the absolute temperature scale). You know that V2 = 2*V1 so replace V2 with that and solve for T2
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