To prove that the gases are highly compressible as compared to liquids:

Activity:

i. Take two 100mL syringes and close their nozzles by rubber corks as shown in the figure below.

ii. Remove the pistons from all the syringes.

iii. Now fill water in the second syringe and leave the first syringe untouched.

iv. Now insert the pistons back into both the syringes.

v. Now try to compress the content of each syringe by pushing the piston.

Observations: We will observe that the syringe with gas is easily pushed in as compared to that of the syringe with water.

Conclusion: We will conclude that gases are highly compressible as compared to liquids.