Question

identify dispersed phase and dispersion medium in foam and rubber

Answer 1

Dispersed phase and dispersion medium in rubber respectively are -

• Gas , Solid

In foam respectively -

• Gas , Liquid.

Answer 2

The dispersed phase and dispersion medium of foam and rubber are as follows:

• Colloids are distinguished by their dispersed phase and dispersion medium.
• The dispersed phase occurs when colloid particles are scattered throughout the medium.
• The medium in which colloidal particles are dispersed is known as the dispersion media.

• Foam: Foam is a colloid having gas dispersed in the medium.

• There are two types of foam which are solid foam and liquid foam.

   1. Solid foam: Dispersion medium = Solid; Dispersed phase = Gas

        For example, Solid cake and pumice stone

   2. Liquid foam: Dispersion medium = Liquid; Dispersed phase = Gas

        For example, Soap lather

• Rubber: Rubber is a type of colloid which has:

        Dispersed phase= Gas; Dispersion medium= Solid