CH4 - Atmospheric Density Flashcards
1
Q
Which is more dense cold or hot air?
A
Cold air because it’s compact, whilst hot air is expanded so molecules have more space in between.
2
Q
What happen with density if humidity is increased?
A
Density will decrease.
3
Q
Characteristics of cold and hot air.
A
Cold air = less water vapour = < density
Hot air = more water vapour = > density
4
Q
Density can be splitted into two different types, which are… ?
A
Relative density and density altitude.
5
Q
What are the factors affecting air density?
A
Temperature, humidity and pressure.
6
Q
What is the air density at mean sea level?
A
1225 gm/m3.
