Problem: An air bubble of 20 cm3 volume is at the bottom of a lake 58 m deep where the temperature is 4.0°C. The bubble rises to the surface, which is at a temperature of 25.6°C. Take the temperature of the bubble's air to be the same as that of the surrounding water.
Part A: Just as the bubble reaches the surface, what is its volume, in cubic cm.
Please also explain, thank you in advance.