The formula to calculate the Height of Capillary Rise or Fall (hc) is:
\[ h_c = \frac{4 \sigma \cos(\theta)}{\rho g d} \]
The Height of Capillary Rise/Fall is the level to which the water rises or falls in a capillary tube.
Surface Tension is a physical property of liquids, in which the molecules are drawn onto every side.
The Angle of Contact between Liquid and Capillary Tube is the angle given in radians between the liquid level in a capillary tube and the surface of the capillary tube.
Density of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object.
The Diameter of Tube is the diameter of the capillary tube which is introduced in the liquid.
Let's assume the following values:
Using the formula:
\[ h_c = \frac{4 \times 72.75 \times \cos(0.2617993877991)}{997.3 \times 9.80665 \times 0.002} \approx 14.3701160959548 \]
The Height of Capillary Rise/Fall is approximately 14.3701160959548 m.
| Surface Tension (N/m) | Angle of Contact (rad) | Density (kg/m³) | Diameter of Tube (m) | Height of Capillary Rise/Fall (m) |
|---|---|---|---|---|
| 70 | 0.2617993877991 | 997.3 | 0.002 | 13.82691583115922 |
| 70.5 | 0.2617993877991 | 997.3 | 0.002 | 13.92567951566750 |
| 71 | 0.2617993877991 | 997.3 | 0.002 | 14.02444320017578 |
| 71.5 | 0.2617993877991 | 997.3 | 0.002 | 14.12320688468406 |
| 72 | 0.2617993877991 | 997.3 | 0.002 | 14.22197056919234 |
| 72.5 | 0.2617993877991 | 997.3 | 0.002 | 14.32073425370062 |
| 73 | 0.2617993877991 | 997.3 | 0.002 | 14.41949793820890 |
| 73.5 | 0.2617993877991 | 997.3 | 0.002 | 14.51826162271718 |
| 74 | 0.2617993877991 | 997.3 | 0.002 | 14.61702530722546 |
| 74.5 | 0.2617993877991 | 997.3 | 0.002 | 14.71578899173374 |
| 75 | 0.2617993877991 | 997.3 | 0.002 | 14.81455267624202 |