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JAMB Chemistry 1981 Question 30

Question 30

Gas Laws

28.8 cm3 of nitrogen at 15°C is cooled to 0°C at constant pressure, the new volume of nitrogen is

  1. A.17.4 cm3
  2. B.14.7 cm3
  3. C.27.3 cm3
  4. D.31.7 cm3
  5. E.34.7 cm3
Show the answer and explanation

Answer: C (27.3 cm3)

Explanation

Charles' law: V2 = 28.8 × 273/288 = 27.3 cm3 (temperatures in kelvin).