Surface Energy Calculator

Formula

To calculate the Surface Energy (\(SE\)):

\[ SE = Fst \cdot dA \]

Where:

\(SE\) is the Surface Energy (N*m²)
\(Fst\) is the surface tension force (N)
\(dA\) is the change in surface area (m²)

What is Surface Energy?

Surface energy is the energy required to increase the surface area of a liquid due to intermolecular forces. It is calculated using the formula \(SE = Fst \cdot dA\), where \(Fst\) is the surface tension force and \(dA\) is the change in surface area.

Example Calculation 1

Let's assume the following values:

Surface Tension Force (\(Fst\)) = 0.072 N
Change in Surface Area (\(dA\)) = 0.01 m²

Using the formula:

\[ SE = 0.072 \cdot 0.01 = 7.2 \times 10^{-4} \text{ N*m²} \]

The Surface Energy is approximately \(7.2 \times 10^{-4}\) N*m².

Example Calculation 2

Let's assume the following values:

Surface Tension Force (\(Fst\)) = 0.05 N
Change in Surface Area (\(dA\)) = 0.02 m²

Using the formula:

\[ SE = 0.05 \cdot 0.02 = 1.0 \times 10^{-3} \text{ N*m²} \]

The Surface Energy is approximately \(1.0 \times 10^{-3}\) N*m².