In terms of particles, the pressure law (p propto T) arises because at higher T:

  1. molecules collide less
  2. both the rate and force of collisions increase
  3. only the number of molecules increases
  4. the walls move outward
Answer

B) both the rate and force of collisions increase

Momentum change per collision and collision rate both rise. SLO P-11-C-09 · Understanding

Physics MCQ · More Kinetic Theory and First Law of Thermodynamics MCQs · Practise