Finding diameter of a bubble when it reaches the surface.

AI Thread Summary
To find the diameter of an air bubble when it reaches the surface, the pressure at a depth of 15 meters must be calculated using the hydrostatic pressure formula, which includes atmospheric pressure and the pressure due to the water column. The ideal gas law can be applied to determine how the volume of the bubble changes as it rises, assuming constant temperature. As the bubble ascends, the decrease in pressure will cause it to expand, leading to an increase in diameter. The final diameter can be calculated by comparing the initial and final pressures and applying the principles of gas expansion. Understanding these concepts is essential for solving the problem accurately.
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Homework Statement


A scuba diver releases an air bubble of diameter 1.0 cm at a depth of 15 m below the surface of a lake. What will be the diameter of this bubble when it reaches the surface? Assume that the temperature of the bubble remains constant.


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Ideal gas law? Do you know how to find pressure at a depth of 15 m?
 
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