Define adsorption. Why students can read blackboard written by chalks? – InterviewSolution

1.

Define adsorption. Why students can read blackboard written by chalks?

Answer»

Adsorption is the phenomenon of accumulation of higher concentration of ‘one substance on the surface of another (in bulk) due to unbalanced/unsatisfied attractive forces on the surface.
When we write on blackboard using chalk, the chalk particles get adsorbed on the surface of the blackboard.

Hence,

Students can read blackboard written by chalks.

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