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The kinetic molecular theory states that all particles of an ideal gas are(1) colliding without

January 2018 NY Regents Chemistry Exam


15 The kinetic molecular theory states that all particles of an ideal gas are

(1) colliding without transferring energy

(2) in random, constant, straight-line motion

(3) arranged in a regular geometric pattern

(4) separated by small distances relative to their size


Solution: Kinetic molecular theory has the following statements which need to be memorized:

  1. Gas particles have negligible volume.

  2. Gas particles are in continuous random motion and move in straight lines.

  3. No forces of attraction or repulsion are considered to exist between the particles.

  4. Collisions of gas particles may transfer energy from one particle to another, but the total kinetic energy remains the same.

Answer: 2


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