Why is cold air more dense?
Understand the Problem
The question is asking about the physical properties of air, specifically why cold air is denser than warm air. This involves concepts of temperature, molecular movement, and how these affect air density.
Answer
Cold air is denser because the molecules are closer together.
Cold air is denser because the molecules are closer together.
Answer for screen readers
Cold air is denser because the molecules are closer together.
More Information
Thermal expansion causes air molecules to move apart as heat is applied, and conversely, they come closer together when cooled.
Tips
A common mistake is to think that pressure alone determines air density, but temperature plays a crucial role.
Sources
- Why is cold air more dense? - Study.com - homework.study.com
- Cold air is dense - Lamont-Doherty Earth Observatory - ldeo.columbia.edu
- Why is cool air more dense than warm air? - Quora - quora.com
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