Question:medium
A spherical air bubble is formed inside a liquid (like water). The radius of the bubble is 0.5 mm, and the surface tension of the liquid is 0.072 N/m. What is the pressure inside the bubble relative to the outside pressure?
A spherical air bubble is formed inside a liquid (like water). The radius of the bubble is 0.5 mm, and the surface tension of the liquid is 0.072 N/m. What is the pressure inside the bubble relative to the outside pressure?
Show Hint
For a spherical air bubble, the pressure inside the bubble is higher than the outside pressure due to the surface tension. Use the formula \(\Delta P = \frac{4 \gamma}{r}\) to calculate the pressure difference.
Updated On: Nov 26, 2025
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