A small air bubble of radius r in water is at a depth h below the wate

1.	A small air bubble of radius r in water is at a depth h below the water surface. If p0 is the atmospheric pressure, ρ is the density of water and T is the surface tension of water, what is the pressure inside the bubble?
Answer» The absolute pressure within the liquid at a depth h is p = p₀ + ρgh. Since the excess pressure inside a bubble is \(\frac{2T}R\), the pressure inside the bubble is P_in = p + \(\frac{2T}R\) = p₀ + ρgh.+ \(\frac{2T}R\)

A small air bubble of radius r in water is at a depth h below the water surface. If p0 is the atmospheric pressure, ρ is the density of water and T is the surface tension of water, what is the pressure inside the bubble?

Answer»

The absolute pressure within the liquid at a depth h is p = p₀ + ρgh.

Since the excess pressure inside a bubble is \(\frac{2T}R\), the pressure inside the bubble is P_in = p + \(\frac{2T}R\) = p₀ + ρgh.+ \(\frac{2T}R\)