An air bubble has a volume of 1.50 cm3 when it is released by a submarine 115 m below the surface of a lake. What is the volume of the bubble when it reaches the surface? Assume that the temperature and the number of air molecules in the bubble remains constant during its ascent. I'm guessing that the depth of the bubble effects the pressure (that being p1) and then the pressure at the surface is one atm? How can I calculate the pressure based on its depth? Thanks in advance for any hints??