Engineering
Physics
Surface Tension and Surface Energy
Question
When water spreads on a glass plate, the force between the water molecules and glass molecules is called:
Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.
Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA
Solution
When water spreads on a glass plate, the attractive force acting between the water molecules and the glass molecules is called adhesion. This is an intermolecular force between two different substances.
In contrast, cohesion is the force between similar molecules (e.g., water-water). Surface tension is a related property but is a result of cohesive forces, not the force itself.
Final Answer: adhesion