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physics

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A 1.6 air bubble is released from the sandy bottom of a warm, shallow sea, where the gauge pressure is 1.6 . The bubble rises slowly enough that the air inside remains at the same constant temperature as the water. What is the volume of the bubble as it reaches the surface?

  • physics -

    pV=nRT (bottom of ocean)
    pV=nRT (top of ocean)

    n,R,T are all constants so those cancel out
    pV(bottom)= pV(top)

    pV(bottom)/p(top)=V(top)

    1.6*1.6/1.0=V
    V=2.56cm3

  • physics -

    Since gauge pressure=p-p_0, you must add p_0 back to the gauge pressure and then multiply by the volume and then divide by atmospheric pressure.

  • physics -

    My physics teacher says that 1 atm is added.

  • physics -

    (1.6+ 1.0)*1.6)/1.0

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