Question

Explain why a gas bubble released at the bottom of a lake grows in size as it rises to the surface of lake .

Answer 1

A gas bubble release at the bottom of a lake grows in size as it rises to the surface of lake because when the bubble is at the bottom of the lake , the total pressure exerted on it sum of pressure due to the water column and the atmospheric pressure , As the gas bubble rises , because of the decline in the depth , the pressure because of the water column declines.
According to Boyl's law ,PV is equivalent hence the bubble grows in size because the pressure decrease.