Question

A sealed syringe contains 60 cm^{3} of air at a pressure of 1.0 atmosphere. The piston is pushed in slowly until the volume is 40 cm^{3}. What is the pressure now?

Answer 1

The new pressure of the air in the syringe is 1.5 atm.

What is the new pressure of the syringe?

The new pressure of the air in the syringe is calculated as follows assuming the temperature remains constant;

P2 = P1V1/V2

P2 = 1 * 60/40

P2 = 1.5 atmospheres

In conclusion, pressure varies inversely as volume.

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