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A soap solution is added to water. What happens to the surface tension?
A soap solution is added to water. What happens to the surface tension?
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A soap solution is added to water. What happens to the surface tension?
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Adding soap to water decreases the surface tension because soap molecules disrupt the cohesive forces between water molecules.
Questions & Step-by-step Solutions
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Q: A soap solution is added to water. What happens to the surface tension?
Solution:
Adding soap to water decreases the surface tension because soap molecules disrupt the cohesive forces between water molecules.
Steps: 6
Show Steps
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' attraction, the cohesive forces are weakened.
Step 6: As a result, the surface tension of the water decreases.
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