the special properties of surface layers , that is, the thin layers of a substance at the boundary of contiguous bodies, mediums, or phases. Surface phenomena related to surface tension and resulting from the deformation liquid boundary surfaces are also called capillary phenomena. ...
Which of the following is a surface phenomenon evaporation boiling freezing deposition?
Evaporation is a process by which water is transformed from liquid to gaseous state. The temperature at which the water starts evaporating is known as the latent heat of vapourisation. Evaporation is a surface phenomenon.
Which of the following is a surface phenomenon?
When the temperature rises, then the process of evaporation occurs, as a result of which the molecules are easily disintegrated at the surface. It is due to this, the process of evaporation is commonly considered as a surface phenomenon.
Which of the following is not a surface phenomena?
Electrolysis process . Process of electrolysis is not a surface phenomenon.
What is not a surface phenomenon?
The phenomenon that takes place at the surface, are termed as surface phenomenon. Among the given processes, crystallisation takes place in the bulk , not at the surface, so it is not a surface phenomenon.
What is a surface phenomenon example?
Evaporation is a surface phenomenon because it occurs in the surface. For example when we put wet clothes for drying we spread them out so that the surface area gets increased. When the surface area increases the water will get enough space to get into vapour stage and thus evaporation happens easily.
Is a surface of phenomenon?
Evaporation is a surface phenomenon because, during evaporation, the molecules with higher kinetic energy dissipate into the air from the topmost layer of the liquid so it is a surface phenomenon. ... Therefore, evaporation takes place from the surface but not from the inside.
Is boiling a surface phenomenon?
Complete answer:
The kinetic energy of the topmost molecules will get dissipated in air. Melting process is also an example of surface phenomenon. So boiling will not be the surface phenomenon hence option A is incorrect. Bulk phenomenon is the phenomenon in which the whole of the substance or the compound is involved.
Is freezing a surface phenomenon?
In all cases freezing is always nucleated at the surface . Plane single crystals are nucleated and grow on the very surface of the liquid supercooled water.
Is condensation a surface phenomenon?
Condensation is the change of the physical state of matter from the gas phase into the liquid phase , and is the reverse of vaporization. ... It can also be defined as the change in the state of water vapor to liquid water when in contact with a liquid or solid surface or cloud condensation nuclei within the atmosphere.
Is viscosity is a surface phenomenon?
Viscosity- Viscosity is a measure of a fluid’s resistance to flow . It is a bulk property of the fluid and by extension of this, it is not only a surface property.
Is melting a surface phenomenon?
Melting process is also an example of surface phenomenon .
Is Vapour pressure a surface phenomenon?
Is Vapour pressure a surface phenomenon? Ordinary evaporation is a surface phenomenon – since the vapor pressure is low and since the pressure inside the liquid is equal to atmospheric pressure plus the liquid pressure, bubbles of water vapor cannot form.
Which of these is not purely a surface phenomenon?
Adsorption is a bulk phenomenon .
Is surface tension a purely surface phenomenon?
Viscosity is a bulk property, whereas surface tension, evaporation and capillarity are surface phenomenon . A surface phenomenon takes place on or near the surface of a substance.
Why surface tension is a surface phenomenon?
It seems to defy the laws of physics, but a paper clip made of steel can indeed float on the water surface. The high surface tension helps the paper clip – with much higher density – float on the water. The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
