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If angle of contact of a drop of liquid is acute than
- a)Adhesion is more than cohesion
- b)Cohesion is more than adhesion
- c)Cohesion is equal to adhesion
- d)Adhesion and cohesion have no bearing with angle of contact
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
If angle of contact of a drop of liquid is acute thana)Adhesion is mor...
When adhesion force is more than cohesion force then fluid will wet the surface and angle of contact between fluid and surface will be less than 90° (acute).
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If angle of contact of a drop of liquid is acute thana)Adhesion is mor...
Explanation:
Angle of Contact:
- The angle of contact is the angle at which the liquid-vapor interface meets the solid surface.
- It is determined by the balance of cohesive forces within the liquid and adhesive forces between the liquid and the solid surface.
Acute Angle of Contact:
- When the angle of contact of a liquid drop is acute, it means that the drop spreads out on the solid surface.
- In this case, the adhesive forces between the liquid and the solid surface are stronger than the cohesive forces within the liquid.
Adhesion vs. Cohesion:
- Adhesion refers to the attraction between molecules of different substances, such as liquid and solid.
- Cohesion refers to the attraction between molecules of the same substance, such as molecules within a liquid.
Relation with Angle of Contact:
- When the angle of contact is acute, it indicates that adhesion is more dominant than cohesion.
- This is because the liquid molecules are more attracted to the solid surface (adhesion) than to each other within the liquid (cohesion).
Therefore, if the angle of contact of a drop of liquid is acute, it means that adhesion is more than cohesion.
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If angle of contact of a drop of liquid is acute thana)Adhesion is more than cohesionb)Cohesion is more than adhesionc)Cohesion is equal to adhesiond)Adhesion and cohesion have no bearing with angle of contactCorrect answer is option 'A'. Can you explain this answer?
Question Description
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