Question

You throw a backyard party that resembles your idea of a big Texas barbecue. The guests get more food than they could possibly eat, including a big juicy steak in the center of each plate. Describe how soap or detergent can help you clean the greasy plates you’re left with when your guests go home, referring to the interactions between particles and the corresponding changes that take place on the submicroscopic level.

Answer 1

This is simply we called as cleansing action of soap or detergents.

This cleansing action is due to micelle formation.Generally soap contains a salts or/and hydrocarbon chain with polar head & non polar tail.

When greacy plates are in contact with soap solution then the non polat tail of hydrocarbons are inserted in to greacy material becoz this tail is hydrophoboc in nataure.The polar head is in the water ie outside the greacy material & in contact with water due to hydrophillic nature of polar head. Thus it forms a ball like structure calles as micelle and greace material is removed fro plate & suspended in water.

The structure of micelle is in the image uploaded.