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JAMB Chemistry 2006 Question 39

Question 39

Gas Laws

If 30 cm3 of a gas at 50°C is warmed to 80°C at a fixed pressure, the fractional increase in volume is

  1. A.0.009
  2. B.0.093
  3. C.0.910
  4. D.1.090
Show the answer and explanation

Answer: B (0.093)

Explanation

Charles' law: V2 = 30 × 353/323 = 32.8 cm3. The increase 2.8 cm3 divided by 30 is about 0.093.