Question

Collisions of gas molecules are ___________

• A. perfectly elastic
• B. inelastic
• C. always occur in a proper and predicted motion
• D. not conserved

Answer 1

Answer:

A. perfectly elastic

The total energy of molecules before the collision is equal to the total energy after the collision. That means there may be an exchange of energy between the molecules but the total energy does not change, so the collisions of gas molecules are elastic.