JAMB Chemistry 2000 Question 6

Question 6

Gas Laws

The ratio of the initial to the final pressure of a given mass of gas is 1:1.5. Calculate the final volume of the gas if the initial volume was 300 cm3 at the same temperature.

  1. A.120 cm3
  2. B.200 cm3
  3. C.450 cm3
  4. D.750 cm3
Show the answer and explanation

Answer: B (200 cm3)

Explanation

Boyle's law: P1V1 = P2V2, so 1 × 300 = 1.5 × V2 and V2 = 200 cm3.