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Molecular collisions are perfectly elast...

Molecular collisions are perfectly elastic.

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**Step-by-Step Text Solution:** 1. **Understanding Molecular Collisions**: - In the context of gases, molecules are in constant motion and frequently collide with one another and with the walls of their container. 2. **Definition of Perfectly Elastic Collisions**: - A perfectly elastic collision is defined as a collision in which both momentum and kinetic energy are conserved. ...
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