Essential Chemistry for IGCSE - Particles And Purification (Section 9 - No. 27)
Which of the following is a key characteristic of the kinetic particle theory?
Particles in a substance are always stationary.
Particles in a substance are in constant motion.
Particles only move when energy is added.
Particles are not affected by temperature changes.
Explanation
The kinetic particle theory states that all matter is made of particles that are in constant motion.
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