Kinetic theory assumes that between collisions the molecules:

  1. move in straight lines at constant speed (no intermolecular forces)
  2. are at rest
  3. move in circles
  4. attract each other
Answer

A) move in straight lines at constant speed (no intermolecular forces)

Forces act only during collisions. SLO P-11-C-05 · Understanding

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