Question

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BOTH THE QUESTIONS​

Answer 1

Answer:

1. The change in enthalpy is denoted to be negative. The reason behind this is that when absorb molecules are absorbed on the surface freedom of movement of molecules is restricted and this results in a decrease in entropy.At constant temperature and pressure absorption occurs spontaneously.

2. The term electrophoresis describes the migration of a charged particle under the influence of an electrical field.

Lets see a example:

The movement of colloidal particles towards oppositely charged electrodes in presence of electric field is called electrophoresis .The movement of colloidal particles towards cathode is called positive .electrophoresis and towards anode is called negative electrophoresis .

The nature of charge present on colloidal particle can be determined with the help of electrophoresis

Example :

Colloidal particles of Move towards anode in the presence of electric field so these colloidal  particles are negatively charged.

Charged colloidal particles  loose their charged by reaching oppositely charged electrode on passing electric current .

Now neutral colloidal particles on aggregation , coagulate to form large particles.

Answer 2

Explanation:

Refer to the images for the Answer ❤️✨