JAMB Chemistry 2008 Question 5

Question 5

Gas Laws

300 cm3 of a gas has a pressure of 800 mm Hg. If the pressure is reduced to 650 mm Hg, find its volume.

  1. A.243.75 cm3
  2. B.369.23 cm3
  3. C.738.46 cm3
  4. D.1733.36 cm3.
Show the answer and explanation

Answer: B (369.23 cm3)

Explanation

Boyle's law: V2 = P1V1/P2 = 800 × 300/650 = 369.23 cm3.