Surface tension is defined as the force acting along the surface of a liquid per unit length.
What is surface tension?
Practice Questions
Q1
What is surface tension?
Force per unit length
Energy per unit area
Pressure difference
Viscosity of a liquid
Questions & Step-by-Step Solutions
What is surface tension?
Step 1: Understand that surface tension is a property of liquids.
Step 2: Imagine the surface of a liquid like a stretched elastic sheet.
Step 3: Realize that molecules at the surface of the liquid are attracted to each other.
Step 4: This attraction creates a 'skin' on the surface, making it behave differently than the liquid below.
Step 5: Surface tension is the force that acts along this surface, trying to minimize the area of the liquid.
Concept – Surface tension is a physical property of liquids that describes the elastic-like force existing at the surface of a liquid, caused by the cohesive forces between liquid molecules.
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