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If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be
- a)higher than the surface of liquid
- b)the same as the surface of liquid
- c)lower than the surface of liquid
- d)unpredictable
- e)none of the above
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
If cohesion between molecules of a fluid is greater than adhesion betw...
Explanation:
Cohesion is the force of attraction between molecules of the same substance, while adhesion is the force of attraction between different substances. In the case of a dipped glass tube, the cohesion between the fluid molecules is greater than the adhesion between the fluid and the glass.
This means that the fluid molecules have a greater attraction to each other than to the glass, causing them to stick together and form a concave meniscus at the top of the fluid level in the tube.
The concave meniscus indicates that the free level of fluid in the dipped glass tube is lower than the surface of the liquid. This is because the cohesive forces between the fluid molecules pull them together, creating a depression in the fluid level.
Therefore, option C is the correct answer.
Summary:
- Cohesion is the force of attraction between molecules of the same substance, while adhesion is the force of attraction between different substances.
- In a dipped glass tube, the cohesion between fluid molecules is greater than the adhesion between the fluid and the glass.
- This causes the fluid molecules to stick together and form a concave meniscus at the top of the fluid level in the tube.
- The concave meniscus indicates that the free level of fluid in the dipped glass tube is lower than the surface of the liquid.
Cohesion is the force of attraction between molecules of the same substance, while adhesion is the force of attraction between different substances. In the case of a dipped glass tube, the cohesion between the fluid molecules is greater than the adhesion between the fluid and the glass.
This means that the fluid molecules have a greater attraction to each other than to the glass, causing them to stick together and form a concave meniscus at the top of the fluid level in the tube.
The concave meniscus indicates that the free level of fluid in the dipped glass tube is lower than the surface of the liquid. This is because the cohesive forces between the fluid molecules pull them together, creating a depression in the fluid level.
Therefore, option C is the correct answer.
Summary:
- Cohesion is the force of attraction between molecules of the same substance, while adhesion is the force of attraction between different substances.
- In a dipped glass tube, the cohesion between fluid molecules is greater than the adhesion between the fluid and the glass.
- This causes the fluid molecules to stick together and form a concave meniscus at the top of the fluid level in the tube.
- The concave meniscus indicates that the free level of fluid in the dipped glass tube is lower than the surface of the liquid.
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If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will bea)higher than the surface of liquidb)the same as the surface of liquidc)lower than the surface of liquidd)unpredictablee)none of the aboveCorrect answer is option 'C'. Can you explain this answer?
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