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3 Responses to “A bubble leaves a scuba divers regulator 30m down in the ocean.?”

1. lost Says:
   September 28th, 2009 at 3:47 am

   my logical guess would be same size because of the scientific law matter cannot be created nor destroyed…but it could grow a little from expanding and collecting smaller bubbles on the way
   References :

2. enginerd Says:
   September 28th, 2009 at 4:08 am

   1 barr (one normal atmosphere) = 10.2 meters of water pressure

   30 meters of water pressure equal about 3 barr

   so, the bubble starts at 1+3=4 (1 from the atmosphere and 3 from the water depth) barr of pressure and ends at 1 barr of pressure (from the atmosphere)

   Because the pressure at the end is 1/4 the pressure at the start, the volume at the end is 4 times the volume at the start

   I’d go with D. 4 times the volume
   References :

3. michael Says:
   September 28th, 2009 at 4:22 am

   air pressure can be measured in atmospheres or (atm)
   1 atm is the pressure of air at sea level
   1atm is 14.9lbs/in^2
   underwater every 33ft = 1 atm
   therefore when you get to depth -33ft, you will be at 2 atm(one for sealevel and one for 33ft under)
   so 30m is going to be about 3 atm below sea level, or 4atm
   what is the action of 4atm on your air bubble compared to the 1 atm when it reaches the surface, i dont know:(
   sorry
   References :

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