JAMB Physics 2012 Question 21

Question 21

Gas Laws

2000cm3 of a gas is collected at 27°C and 700mmHg. What is the volume of the gas at standard temperature and pressure?

  1. A.1896.5cm3
  2. B.1767.3cm3
  3. C.1676.3cm3
  4. D.1456.5cm3.
Show the answer and explanation

Answer: C (1676.3cm3)

Explanation

P1V1/T1 = P2V2/T2: V2 = 700 × 2000 × 273 ÷ (760 × 300) ≈ 1676.3 cm3.