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As stated by the kinetic theory of gases, how does an ideal gas molecule move during the interval between two consecutive collisions?

1. Along a zigzag trajectory
2. Along a straight-line trajectory
3. With increasing speed due to acceleration
4. Along a circular trajectory

Correct answer: Along a straight-line trajectory

Solution

According to the kinetic theory of gases, ideal gas molecules move in straight lines between collisions, as they are assumed to have no interactions except during these brief collisions.

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