Topic Details (Notes format)

Surface Tension

Subject: Chemistry

Book: General Chemistry

Surface tension is the energy required to increase the surface area of a liquid. It arises from cohesive forces among liquid molecules and is measured in N/m (SI unit). Water’s high surface tension allows insects to walk on its surface and is reduced by surfactants like detergents. Control of surface tension is important in coatings, emulsions, and cleaning processes.

Practice Questions

Which element is represented by the symbol 'Ag'?

Which element is represented by the symbol 'O'?

Which element is the lightest in the periodic table?

What is the chemical formula for sodium hydroxide?

Which element is primarily used in stainless steel?

Which acid is found in vinegar?

Which element has the highest melting point?

Which acid is often referred to as the "king of chemicals"?

Which element is represented by the symbol 'Pb'?

Which element is commonly used as a catalyst in hydrogenation reactions?