Detergents ________ the surface tension of water.
Reduces
The correct answer reduces.
Key Points
- Adding surfactants to water reduces its surface tension.
- Surfactants and soaps are referred to as surface-active agents or simply surfactants.
- They lower the surface tension of water and enhance its ability to wet things.
Additional Information
- A slow change or process occurs in small steps over a long period rather than suddenly.
- Compounds that reduce the surface tension of water are called surfactants, which work by separating water molecules from each other.
- The surface tension of water increases several times by incorporating common salt into it.
Important Questions from Surface Tension
Falling drops of rain break up and coalesce with each other and finally achieve an approximately spherical shape in the steady state. The radius of such a drop scales with the surface tension σ as
The property of a fluid which enables it to resist tensile stress is known as
Above the critical micelle concentration (CMC), the option which correctly describes the variation of molar conductivity with increase in concentration of sodium dodecylsulphate în aqueous solution is
If the surface tension of the soap bubble is 0.035 N/m, then the work done in blowing the soap bubble of radius 5 cm in the air is.
Addition of detergent to liquid
