Why is air denser near the earth's surface than high in the atmosphere?
Answers
Answered by
3
Variations in air properties extend upward from the surface of the Earth. The sun heats the surface of the Earth, and some of this heat goes into warming the air near the surface. The heated air is then diffused or convected up through the atmosphere. Thus the air temperature is highest near the surface and decreases as altitude increases. The pressure of the air can be related to the weight of the air over a given location. As we increase altitude through the atmosphere, there is some air below us and some air above us. But there is always less air above us than was present at a lower altitude. Therefore, air pressure decreases as we increase altitude. The air density depends on both the temperature and the pressure through the equation of state and also decreases with increasing altitude
this can also be seen from the formula
PV=nRT
=>P=nRT/V
That is for a unit mass of air
density{rho} = 1/V
From the above formula
P is directy proportional to density{rho}(1/V)
As pressure is lower at higher altitude so density also decrease
hope this helps
this can also be seen from the formula
PV=nRT
=>P=nRT/V
That is for a unit mass of air
density{rho} = 1/V
From the above formula
P is directy proportional to density{rho}(1/V)
As pressure is lower at higher altitude so density also decrease
hope this helps
Answered by
0
Answer:As we go higher in altitude, less the air
Explanation:
Similar questions