Question 12
Gas LawsThe volume of a fixed mass of gas is 10cm3 when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg.
- A.30cm3
- B.40cm3
- C.50cm3
- D.20cm3
Show the answer and explanation
Answer: D (20cm3)
Explanation
Boyle's law: P1V1 = P2V2, so V2 = 400 × 10 ÷ 200 = 20 cm3.