Do the radius of capillary affect the value of surface tension ?

In summary, the radius of a capillary does not significantly affect the value of surface tension. Surface tension is primarily determined by the cohesive forces between molecules at the surface of a liquid, and these forces are not affected by the size of the capillary. However, in very small capillaries, the surface tension may be slightly increased due to the curvature of the liquid's surface. Overall, the impact of capillary radius on surface tension is minimal and does not significantly alter the properties of liquids.
  • #1
Aman Srivastava
While going through the derivation to find the surface tension of liquid i came with the formula which says that the surface tension is directly proportional to radius of the capillary so does that imply if we use a capillary with a greater radius so the same will give the different value of surface tension ?
 
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  • #2
Surface tension is a property of the liquid.
 

1. How does the radius of a capillary affect surface tension?

The radius of a capillary is directly proportional to the surface tension. This means that as the radius of the capillary decreases, the surface tension increases, and vice versa. This is because a smaller radius creates a greater curvature of the liquid, which requires a higher amount of energy to overcome the cohesive forces of the molecules on the surface.

2. What is the relationship between capillary radius and surface tension?

The relationship between capillary radius and surface tension is known as the Laplace equation. It states that surface tension is inversely proportional to the radius of the capillary. In other words, as the radius decreases, the surface tension increases.

3. How does surface tension change with different capillary radii?

Surface tension changes inversely with different capillary radii. This means that as the radius of the capillary decreases, the surface tension increases, and vice versa. This is because a smaller radius creates a greater curvature of the liquid, which requires a higher amount of energy to overcome the cohesive forces of the molecules on the surface.

4. Does the surface tension of a liquid change with the radius of the capillary?

Yes, the surface tension of a liquid changes with the radius of the capillary. As the radius decreases, the surface tension increases, and vice versa. This is due to the Laplace equation, which states that surface tension is inversely proportional to the radius of the capillary.

5. How does the radius of a capillary affect the strength of surface tension?

The radius of a capillary directly affects the strength of surface tension. As the radius decreases, the surface tension increases, and vice versa. This is because a smaller radius creates a greater curvature of the liquid, requiring a higher amount of energy to overcome the cohesive forces of the molecules on the surface. As a result, the surface tension becomes stronger with a smaller capillary radius.

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