JAMB Physics 1991 Question 18

Question 18

Gas Laws

The graphs below show the variation of volume (V) against temperature (T) in Kelvin for a given mass of gas at constant pressure. Which of the graphs depicts the behaviour of an ideal gas?

Diagram for this question
  1. A.A
  2. B.B
  3. C.C
  4. D.D
Show the answer and explanation

Answer: A (A)

Explanation

Charles' law: at constant pressure V is proportional to the kelvin temperature, a straight line through the origin, as in A.