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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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Higher Cohesion and Lower Adhesion in Fluid-Glass System
Explanation:
When a fluid is placed in a glass tube, the interaction between the fluid molecules and the glass surface determines the level of the fluid in the tube. This interaction can be categorized into two types: cohesion and adhesion.
Cohesion:
Cohesion refers to the attraction between molecules of the same substance. In the case of a fluid, it refers to the attractive forces between the fluid molecules themselves. If the cohesion between the fluid molecules is greater, it means that the molecules have a stronger attraction to each other, resulting in a higher cohesive force within the fluid.
Adhesion:
Adhesion, on the other hand, refers to the attraction between molecules of different substances. In this case, it refers to the attractive forces between the fluid molecules and the glass surface. If the adhesion between the fluid and glass is greater, it means that the fluid molecules have a stronger attraction to the glass surface.
Fluid Level in a Dipped Glass Tube:
The level of fluid in a dipped glass tube is determined by the balance between cohesion and adhesion forces.
- If the adhesion between the fluid and glass is greater than the cohesion within the fluid, the fluid will be attracted to the glass surface and will rise in the tube, resulting in a higher level than the surface of the liquid.
- If the cohesion within the fluid is greater than the adhesion between the fluid and glass, the fluid will have a stronger attraction to itself and will tend to minimize contact with the glass surface. In this case, the fluid level will be lower than the surface of the liquid.
Conclusion:
In the given scenario where the cohesion between the fluid molecules is greater than the adhesion between the fluid and glass, the fluid level in the dipped glass tube will be lower than the surface of the liquid. This can be explained by the fact that the fluid molecules have a stronger attraction to each other, resulting in a lower fluid level in the tube compared to the surface of the liquid.
Therefore, the correct answer is option 'C' - lower than the surface of the liquid.
Explanation:
When a fluid is placed in a glass tube, the interaction between the fluid molecules and the glass surface determines the level of the fluid in the tube. This interaction can be categorized into two types: cohesion and adhesion.
Cohesion:
Cohesion refers to the attraction between molecules of the same substance. In the case of a fluid, it refers to the attractive forces between the fluid molecules themselves. If the cohesion between the fluid molecules is greater, it means that the molecules have a stronger attraction to each other, resulting in a higher cohesive force within the fluid.
Adhesion:
Adhesion, on the other hand, refers to the attraction between molecules of different substances. In this case, it refers to the attractive forces between the fluid molecules and the glass surface. If the adhesion between the fluid and glass is greater, it means that the fluid molecules have a stronger attraction to the glass surface.
Fluid Level in a Dipped Glass Tube:
The level of fluid in a dipped glass tube is determined by the balance between cohesion and adhesion forces.
- If the adhesion between the fluid and glass is greater than the cohesion within the fluid, the fluid will be attracted to the glass surface and will rise in the tube, resulting in a higher level than the surface of the liquid.
- If the cohesion within the fluid is greater than the adhesion between the fluid and glass, the fluid will have a stronger attraction to itself and will tend to minimize contact with the glass surface. In this case, the fluid level will be lower than the surface of the liquid.
Conclusion:
In the given scenario where the cohesion between the fluid molecules is greater than the adhesion between the fluid and glass, the fluid level in the dipped glass tube will be lower than the surface of the liquid. This can be explained by the fact that the fluid molecules have a stronger attraction to each other, resulting in a lower fluid level in the tube compared to the surface of the liquid.
Therefore, the correct answer is option 'C' - 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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