Pressure Inside Soap Bubble Calculator

Calculate Pressure Inside Soap Bubble





Formula

The formula to calculate the Pressure Change (Δpnew) is:

\[ \Delta p_{\text{new}} = \frac{8\sigma}{d} \]

Definition

Pressure change new is the difference between the pressure inside the liquid droplet and atmospheric pressure. Surface tension is a word that is linked to the liquid surface. It is a physical property of liquids, in which the molecules are drawn onto every side. Diameter of droplet is the length of the longest chord of the liquid droplet.

Example Calculation

Let's assume the following values:

Using the formula:

\[ \Delta p_{\text{new}} = \frac{8 \cdot 72.75}{1.21} \approx 480.99173553719 \]

The Pressure Change is approximately 480.99173553719 Pa.

Conversion Chart

Surface Tension (N/m) Diameter of Droplet (m) Pressure Change (Pa)
70 1.21 462.80991735537191
70.5 1.21 466.11570247933884
71 1.21 469.42148760330582
71.5 1.21 472.72727272727275
72 1.21 476.03305785123968
72.5 1.21 479.33884297520660
73 1.21 482.64462809917359
73.5 1.21 485.95041322314052
74 1.21 489.25619834710744
74.5 1.21 492.56198347107437
75 1.21 495.86776859504135