What happens to the surface tension of water when soap is added?

What happens to the surface tension of water when soap is added?

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 water molecules are attracted to each other. This attraction creates strong cohesive forces at the surface.
Step 3: When soap is added to water, soap molecules mix with the water.
Step 4: Soap molecules have a special structure that disrupts the attraction between water molecules.
Step 5: Because the soap molecules interfere with the water molecules, the cohesive forces are weakened.
Step 6: As a result, the surface tension of the water decreases.

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