A basic postulate of the kinetic theory of gases is that the molecules of a gas move in straight lines between collisions. This implies that
-
collisions are perfectly elastic
- forces of repulsion exist
- forces of repulsion and attraction are in equilibrium
- collisions are inelastic
The correct answer is: A
Explanation
According to one of the kinetic theories of gases, When collisions occur, the molecules lose no kinetic energy; that is, the collisions are said to be perfectly elastic.
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