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JAMB Chemistry 1994 Question 8

Question 8

Gas Laws

An increase in temperature causes an increase in the pressure of a gas because

  1. A.it decreases the number of collision between the molecules
  2. B.the molecules of the gas bombard the walls of the container more frequently
  3. C.it increases the number of collisions between the molecules
  4. D.it causes the molecules to combine
Show the answer and explanation

Answer: B (the molecules of the gas bombard the walls of the container more frequently)

Explanation

Hotter molecules move faster, so they hit the container walls more often and harder. Pressure comes from these collisions with the walls.