Problem 62PE

Calculate the gauge pressures inside 2.00-cm-radius bubbles of water, alcohol, and soapy water. Which liquid forms the most stable bubbles, neglecting any effects of evaporation?

Solution

Step 1 of 5

We need to find out the gauge pressure inside a of water, alcohol, and soapy water bubble and which one is more stable.

The gauge pressure is given by,

Where is the radius of the bubble and is the surface tension of the liquid.