My Learning Cart
?
Categories
Account

A soap solution is added to water. What happens to the surface tension?

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: A soap solution is added to water. What happens to the surface tension?

Options:

  1. Increases
  2. Decreases
  3. Remains the same
  4. Becomes zero

Correct Answer: Decreases

Solution: 

Adding soap to water decreases the surface tension because soap molecules disrupt the cohesive forces between water molecules.

A soap solution is added to water. What happens to the surface tension?

Practice Questions

Q1
A soap solution is added to water. What happens to the surface tension?
  1. Increases
  2. Decreases
  3. Remains the same
  4. Becomes zero

Questions & Step-by-Step Solutions

A soap solution is added to water. What happens to the surface tension?
Correct Answer: Surface tension decreases.
  • 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.
  • Surface Tension – Surface tension is the elastic tendency of a fluid surface that makes it acquire the least surface area possible.
  • Effect of Surfactants – Surfactants, like soap, reduce surface tension by disrupting the cohesive forces between liquid molecules.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks