JAMB Physics 2014 Question 21

Question 21

Gas Laws

The equation PaVbTc = constant reduces to Charles Law if

  1. A.a=1, b=0 and c= −1.
  2. B.a=0, b=1 and c=1.
  3. C.a=0, b=1 and c= −1.
  4. D.a=1, b=1 and c=0.
Show the answer and explanation

Answer: C (a=0, b=1 and c= −1.)

Explanation

Charles' law is V/T = constant at fixed pressure, i.e. P0V1T−1 = constant: a = 0, b = 1, c = −1.