7
QuizMultiple Choice

States and Changes of Matter — Test

Question 7 • Chemistry

Which is an aspect of the kinetic-molecular theory and can be used to explain the behavior of plasmas?

Answer
A
Particles exchange energy through elastic collisions.
B
Particle spacing can allow a very high density.
C
Particles vibrate quickly in stationary positions.
D
Particle kinetic energy is independent of temperature.

Explanation

The kinetic-molecular theory describes particles as moving constantly and exchanging energy in elastic collisions, meaning their total kinetic energy is conserved in a collision. This idea can help explain particle interactions in a plasma. The other choices are incorrect: vibrating in fixed positions describes a solid, and average kinetic energy depends on temperature.

AI-written and checked against the verified answer.

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