What is the relationship between chnages in air pressure and tempertaure?

Question

Air pressure decreases with an increase in altitude. This happens because air pressure is determined by the weight of the overlying air. Consequently, air rising upward experinces lower pressure and expands. What must happen to the temperature of air rising through the atmosphere?

What happens to the temperature of air when it moves downward in the atmosphere?

Answer 1

In general the temperature of the air parcel falls as it rises into the atmosphere and rises as it falls in the atmosphere.
However, inversions are stable areas in the atmosphere where the temperature is often greater than the layer below it. The tropopause is an excellent example of this. In inversions, the parcel of air can mix with this air mass to give variations in the statement above.

Answer 2

Pressure increases with temperature only if the volume is kept constant.This cannot happen in the atmosphere as the volume cannot be kept constant.We know that the sun's radiation is responsible for the various weather conditions on the earth.The unequal heating between two land areas or between land area and sea area creates low and high pressure systems which results in the flow of wind from high pressure to low pressure.If the air near the surface is heated and rises above a low pressure area is created there.So the temperature rise creats a low pressure .As you go up, the pressure decreases with a decrease in the temperature particularly in the tropophere.This pressure decrease is not due to temperature change but because of the decrease in the weight of the overlying air.

Answer 3

The ideal gas law is PV=nRT.
P=pressure
V=Volume
n=mass of substance in moles
R= constant at 0.0821
T= Temperature in Kelvins

If n is constant then, If P decreases, T increases and vice versa.

For example:
If V=1
n=2
P(1)=2(0.0821)T
P=.1642(T)

If I put in a value for P such as 10, then T= 60.9
If you increase P to 15, then T= 91.35

So, you can see how an increase in the value for P, or pressure, results in an increase in the value for T, or temperature. Therefore a decrease in pressure also results in a decrease in temperature.

This happens because if the air pressure decreases, then there is less pressure on the air particles and so they don't hit each other as often to produce friction and kinetic energy which would be the heat.

Answer 4

Well, this depends upon what part of the atmosphere the air is traveling. In the troposphere, temperature increases as you go down, int he stratosphere, it decreases, etc.

The high altitude layers of our atmosphere can have higher temperatures then the lower, but there are less particles, so, there is little heat.

When the temperature of the air is increased, it it becomes less dense, and rises, thus, there is lower air pressure. When it becomes cooler,more dense, and sinks, and, thus the air pressure is increased.

Answer 5

Rising air = falling temperature, and vice versa. Falling air over the regions in the neighborhood of 30 degrees north and south creates the world's great deserts; this is called the Hadley circulation.

Answer 6

it is as a results of unequal heating of the land and the adjoining sea surfaces,a stress gradient(stress difference) is created between the land and the sea greatest to the formation of sea breeze which blows in the direction of the land.So extreme heating(extreme temperature) over a place would create a low stress section. As air rises over a low stress section,it cools and condenses greatest to the formation of clouds.So,cloud cover continuously be over a low stress section while possibility is much less for the formation of cloud over a extreme stress section as a results of sinking of air over that place. in accordance to Buys poll's regulation,if an observer stands together with his back to the wind,interior the northern hemisphere, the low stress would be on his left;interior the southern hemisphere,it is going to likely be to his top.

Answer 7

There is a formula caled the ideal gas law.. PV=nrT

so the relationship between Pressure and temp is P/T(initial)=P/T(final)

Answer 8

Lower the pressure the cooler it is.