Difference between bulk phenomenon and surface phenomenon
Answers
The bulk phenomenon is the process in which the particles in the bulk of the liquid gets the energy that is enough to break away the inter molecular force between the molecules and convert them into vapors or gases.
The surface phenomenon is the one in which the small fraction of particles at the surface of the liquid will energy that is enough to break out the inter molecular force and convert them into vapors or gas.
Hi, my friend
Boiling is a bulk phenomenon. Particles of the bulk of the liquid gain enough energy to change to vapour state. The entire bulk of liquid and all the molecules including the interior and the surface gain energy to change to vapour state. The heat energy is supplied from the bottom of the liquid. Therefore the heat energy goes to the entire bulk of liquid and starts boiling. Whereas evaporation is a surface phenomenon. Only the particles on the surface gain enough energy to get converted into vapour state. A small fraction of particles at the surface gain energy and break away from the force of attraction of the other particles and changes to vapour state.
Evaporation (whether it is at or below the boiling point) happens at the interface between the liquid and the gas phase. ... Originally Answered: Evaporation is also known as surface phenomenon why? Because on surface humidity is less so the particles of water moves more fastly so the water starts evaporating more fastly.
Harith
Maths Aryabhatta