•Take three 100 ml syringes and close their nozzels by rubber corks, as shown.
•Remove the pistons from all the syringes.
•Leaving one syringe untouched, fill water in the second and pieces of chalk in the third.• Insert the pistons back into the syringes. you may apply some vasline on the pistons before inserting them into the syringes for their smooth movement.
•Now, try to compress the content by pushing the piston in each syringe.
•What do you observe? In which case was the piston easily pushed in ?
•What do you infer from your observation?
•Remove the pistons from all the syringes.
•Leaving one syringe untouched, fill water in the second and pieces of chalk in the third.• Insert the pistons back into the syringes. you may apply some vasline on the pistons before inserting them into the syringes for their smooth movement.
•Now, try to compress the content by pushing the piston in each syringe.
•What do you observe? In which case was the piston easily pushed in ?
•What do you infer from your observation?
Answers & Comments
Answer:
The untouched syringe gets compressed easily.
Explanation:
The reason is that, in solids, the molecules are held together by a strong force of attraction making it harder to compress.
In liquids, there is a stronger force of attraction between molecules than that in gas, so it is compressible to some extent.
However, gases having the weakest force of attraction, have a large intermolecular space between two molecules, so it can be compressed easily.
Hence we can infer, that gases are highly compressible, but solids and liquids are not.
Verified answer
Answer:
Based on the given setup, here are the observations and inferences:
1. Untouched Syringe: The piston in the untouched syringe can be easily pushed in with minimal resistance. This is because there is only air inside the syringe, which can be easily compressed.
2. Syringe with Water: The piston in the syringe filled with water will offer some resistance when trying to push it in. Water is not easily compressible, so the piston requires more force to compress the water.
3. Syringe with Chalk Pieces: The piston in the syringe filled with chalk pieces will offer the most resistance when trying to push it in. Chalk pieces are solid and do not compress easily, so a significant amount of force is required to compress the chalk.
Inference: The ease or difficulty of pushing the pistons in each syringe is directly related to the compressibility of the contents inside. Air is highly compressible, water is moderately compressible, and solid chalk is nearly incompressible. This observation indicates that substances with higher compressibility offer less resistance to compression, while substances with lower compressibility offer more resistance.