Ideal Gas HW: Volume of Bubble Rising to Surface

  • Thread starter ibnuts
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  • #26
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Normal pressure + Pressure of the water above, which is Force * Depth
 
  • #27
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So where does density come in? It'd be easiest just to give me your number for pressure, I am trying to show another way of doing this.
 
  • #28
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((1.013*10^5)+(1025*9.8*80.0)) is the density he reported in pascals
 
  • #29
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ibnuts said:
Using the pressure formula, the [tex] P_f [/tex] will be far higher than the [tex] P_i [/tex], meaning the final answer for [tex] V_f [/tex] will be very low (dividing a small # by a very large #). This doesn't make sense though since the volume should increase as the bubble rises to the surface under decreasing pressure.
You first state that [tex] P_f >>P_i [/tex] and then you go on saying that the pressure is decreasing. Which statement is the true one?
 

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