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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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If angle of contact of a drop of liquid is acute thana)Adhesion is mor...
Explanation:
The angle of contact is the angle between the tangent to the liquid surface at the point of contact and the solid surface. It is a measure of the wettability of a solid surface by a liquid. The angle of contact depends on the nature of the liquid and the solid surface.
Cohesion and Adhesion:
Cohesion is the intermolecular attraction between like molecules, i.e. the molecules of the same substance. Adhesion is the intermolecular attraction between unlike molecules, i.e. the molecules of different substances.
Acute Angle of Contact:
When the angle of contact is acute, i.e. less than 90 degrees, the liquid tends to spread over the solid surface. This is because the adhesive forces between the liquid and the solid surface are greater than the cohesive forces between the liquid molecules.
Adhesion is more than Cohesion:
When the angle of contact is acute, the adhesive forces between the liquid and the solid surface are greater than the cohesive forces between the liquid molecules. Therefore, the drop of liquid tends to spread over the solid surface. This is why the correct option is A, i.e. Adhesion is more than Cohesion.
The angle of contact is the angle between the tangent to the liquid surface at the point of contact and the solid surface. It is a measure of the wettability of a solid surface by a liquid. The angle of contact depends on the nature of the liquid and the solid surface.
Cohesion and Adhesion:
Cohesion is the intermolecular attraction between like molecules, i.e. the molecules of the same substance. Adhesion is the intermolecular attraction between unlike molecules, i.e. the molecules of different substances.
Acute Angle of Contact:
When the angle of contact is acute, i.e. less than 90 degrees, the liquid tends to spread over the solid surface. This is because the adhesive forces between the liquid and the solid surface are greater than the cohesive forces between the liquid molecules.
Adhesion is more than Cohesion:
When the angle of contact is acute, the adhesive forces between the liquid and the solid surface are greater than the cohesive forces between the liquid molecules. Therefore, the drop of liquid tends to spread over the solid surface. This is why the correct option is A, i.e. 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?
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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? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about 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? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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?.
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? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about 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? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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?.
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