What happens to the surface tension of water when temperature increases?

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Question: What happens to the surface tension of water when temperature increases?

Options:

Correct Answer: Decreases

Solution:

The surface tension of water decreases with an increase in temperature.

What happens to the surface tension of water when temperature increases?

What happens to the surface tension of water when temperature increases?

Step 1: Understand what surface tension is. Surface tension is the force that makes the surface of water behave like a stretched elastic sheet.
Step 2: Know that temperature affects the movement of water molecules. When water is heated, its molecules move faster.
Step 3: Realize that faster-moving molecules can break the bonds that create surface tension more easily.
Step 4: Conclude that as temperature increases, the surface tension of water decreases because the molecules are moving too quickly to maintain strong surface bonds.

Surface Tension – Surface tension is the cohesive force at the surface of a liquid that causes it to behave as if it is covered by an elastic membrane.
Temperature Effect – As temperature increases, the kinetic energy of water molecules increases, leading to a decrease in cohesive forces and thus a reduction in surface tension.