People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?
Answers (1)
Soap contains two parts. One part is hydrophilic, and the other part is hydrophobic. Soaps are the sodium or potassium salt of a long chain of carboxylic acid. When the dirty clothes dip in the soap solution. The hydrophobic ends attach to the dirt and form a huge cluster. This cluster is known as micelle and traps the dirt.