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JAMB Physics 1992 Question 16

Question 16

Gas Laws

At constant pressure, the density of a fixed mass of gas is

  1. A.constant with temperature
  2. B.proportional to its volume
  3. C.inversely proportional to its temperature
  4. D.independent of its volume.
Show the answer and explanation

Answer: C (inversely proportional to its temperature)

Explanation

At constant pressure V ∝ T (Charles's law). Density = mass/volume, so density ∝ 1/T.