At which temperature would the molecules in a one gram sample of water have the lowest average
kinetic energy?
1) 5°C
3) 5K
2) -100°C
4) 100 K

-100 K

Explanation:

Kinetic energy is related to temperature. The molecules in water will move faster in warmer temperatures than in colder ones.

100 K is equal to -279.67°F (-173.15°C). So 100 K would have the lowest average kinetic energy.

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