Why is the temperature high and the air pressure low and the temperature low and the air pressure hi

Air expansion and contraction You know.

The same is true here.

The temperature is high, the air expands and rises, and there is less air near the ground, and the air pressure is related to the amount of air, more air, more air pressure, less air, and low air pressure (but at high altitude it is higher than at high altitude in places where the temperature near the ground is low, because the air near the ground is here, so there is more air here).

When the temperature is low, the air at high altitudes sinks, and when there is more air on the ground, the air pressure is greater (but at high altitude it is lower than at the upper altitude where the temperature is higher near the ground, because the air at high altitude sinks).

Addendum: You don't know the concept of air pressure? Air is also subject to the gravitational pull of the earth, and if there is more air (for example, if the density is high, the air quality per unit volume is large), the gravitational force is great, and the air pressure is the gravitational force per unit area of air.

You know, most objects are thermal expansion and cold contraction.

The air is the same, the temperature increases, the volume expands, the density decreases, the float rises, so the pressure decreases, that is, the air pressure decreases. On the contrary, when the temperature decreases, the volume shrinks, and the density increases, the air sinks, so the pressure increases, and the air pressure increases.

The temperature is high, the air rises, the underground gas is less, and the air pressure is low;

The temperature is low, the air drops, the ground has more gas, and the pressure is strong.

That's how it is understood.

As the temperature rises, the atmosphere becomes thinner and less dense; Therefore, in this specified area of the thin atmosphere, the pressure becomes smaller, so the air pressure becomes relatively low.

In a closed container, the higher the temperature, the higher the air pressure; In the atmosphere, the higher the temperature, the lower the air pressure. When the temperature is high, the gas expands (the principle of thermal expansion and cold contraction), then the density of the gas is smaller, and thus the air pressure is smaller. When the temperature is low, the gas shrinks, and the gas density increases, so the air pressure increases.

Ways to reduce the pressure.

When the pressure f is constant, the force area s is increased;

When the force area s is constant, the pressure f is reduced;

At the same time, the pressure f is reduced and the force area s is increased.

A way to increase the pressure.

When the pressure f is constant, the force area s is reduced;

When the stress area s is constant, the pressure f is increased;

At the same time, the pressure f is increased and the force area s is reduced.

To understand this question, we must first know the definition of air pressure. Barometric pressure is the pressure of the atmosphere acting on a unit area, that is, the weight of the vertical column of air that extends up to the upper boundary of the atmosphere per unit area. In other words, air pressure is the gravitational force of the atmosphere received by one square meter of ground.

The higher the gravity of the same high atmosphere, the denser the atmosphere, the greater the pressure it will put on the ground.

The density of the air is inversely proportional to the temperature of the air, so the temperature is low where the air pressure is high.

Of course, there is a prerequisite for this, that is, at the same altitude!! This is very important! Because at high altitudes, the height of the air column must be small, and the atmospheric pressure must be low.

Because the heating of the atmosphere comes directly from the ground, the higher the altitude, the lower the temperature, and the temperature at the same level as the mountain is lower than the ground, so the temperature of the mountain is also low. For every 1,000 meters of average elevation, the temperature decreases by 6 degrees Celsius.

The air pressure in the high mountains is lower than the air pressure under the high mountains.

A high air pressure indicates that the air is dense, and to make it denser, it is necessary to either increase the pressure or decrease the temperature. There is no such thing as increasing the pressure in the air, because the atmospheric pressure is basically constant, so the pressure will only increase if the temperature is lowered. Therefore, there is a phenomenon of high air pressure and low temperature.

You can imagine that when the temperature is low, the density of the air is high, and the atmospheric pressure is caused by the gravity of the air, so when the temperature of an area is at the bottom, the air pressure is a little higher, of course, it is also related to the humidity, the higher the humidity, the lower the air pressure.

Air and water vapor flow from places with high air pressure to places with low air pressure, because water vapor carries heat energy, the temperature of places with low air pressure is higher, and places with high air pressure have less water vapor and are drier, and the temperature is lower with less heat energy.

The temperature is low, the air density is high, the air is relatively heavy, so the air pressure is high, the temperature is high, the air is thin, the air is light, and the air pressure is low.

Energy conversion, instantaneous increase, space shrinkage, friction heat.

Nothing necessarily connected, right? If you want to, the air pressure is high and the temperature is high.

The higher the temperature, the lower the Lumin air pressureThe higher the temperature, the lower the air pressure. The formula for air pressure: p-f s, from the formula it can be seen that the magnitude of the pressure is only related to f, the temperature increases, the atmosphere becomes thinner, and the density becomes smaller

Therefore, in this designated area of thin atmosphere, Leli employment is small. Therefore, the air pressure is relatively low.

In a closed container, the higher the temperature, the higher the air pressure, and the ridges roll;

In the atmosphere, the higher the temperature, the lower the air pressure. When the temperature is high and the gas expands (the principle of thermal expansion and cold contraction), then the density of the gas is smaller, and thus the air pressure is smaller. When the temperature is low, the gas shrinks, and the gas density increases, so the air pressure increases.

These are two different problems, the high temperature and high air pressure are based on the ideal gas equation pv=nrt (p is the pressure, v is the volume of gas, n is the amount of matter of the gas, t is the temperature, r is a constant), so there is an equation to see that when the equation holds, p is large, t is large. The low pressure at the top of the mountain is due to the gravity of the earth that concentrates the atmosphere mainly on the surface, and this is calculated based on p = p (density) gh.

The higher the altitude, the thinner the air and the lower the natural air pressure.

At the same altitude, the hotter the air, the thinner the cold shrinkage and heat expansion, so the air pressure is low. The colder the air, the tighter it is, so the air pressure is high.

Not necessarily.

If the space is closed, like a gas in a bottle, the temperature rises and the volume expands, so the pressure increases.

If the space is open, such as the gas in an open bottle, the temperature rises, the gas inside expands by the heat, and it runs out, and the air pressure becomes smaller.

If it is in the mountains, the temperature is low and the air pressure is low.

In the atmospheric stratification, it can be seen that the mountain peaks are in the troposphere, and the temperature of the troposphere decreases from the bottom to the top, with the increase of altitude. The presence of altitude sickness proves that the pressure at the top of the mountain is indeed lower than that at the foot of the mountain. The book is written wrong probably,

The higher the altitude, the lower the air pressure.

Temperature is related to air pressure.

The higher the air pressure, the lower the temperature.

The lower the air pressure, the higher the temperature.

When the temperature is high, the air pressure is low.

The magnitude of air pressure is related to altitude, atmospheric temperature, atmospheric density, etc., and generally decreases exponentially with the increase of altitude. There are diurnal and annual variations in air pressure. During the year, the air pressure is higher in winter than in summer.

During the day, there is a maximum and a minimum of air pressure, which occurs at 9 10 o'clock and 15 16 o'clock, and a second highest and one sub-low value, which occurs at 21 22 o'clock and 3 4 o'clock, respectively.

The diurnal variation of air pressure is small, generally in kilopascals, and decreases with increasing latitude. The change of air pressure is closely related to the wind and the quality of the weather, so it is an important meteorological factor. The units of air pressure commonly used are Pa (Pa), millimeter mercury column height (mm·hg), and millibar (MB).

The conversion relationship between them is: 100 Pa = 1 mbar 3 4 mm mercury column height. The instruments commonly used to measure air pressure in meteorological observation include mercury barometer, empty box barometer, and barometer.

The pressure at which the vertical column of mercury is 760 mm high at a temperature of 0, and the standard atmospheric pressure was first measured by the Italian scientist Torricelli.

The temperature is high, and the air pressure becomes low.

When the air cools, the air shrinks, the density increases, and the weight of the air column per unit area increases, and the air pressure increases. Therefore, when cold air arrives, it is always accompanied by an increase in air pressure, and when warm air comes, the air pressure decreases. Winter is a world of cold air, and summer is a world of warm air, and the reason why the air pressure is high in winter and low in summer is very clear.

Changes in atmospheric pressure are also related to the weather. The atmospheric pressure in the same place is not exactly the same at different times.

Changes with climate: In general, the atmospheric pressure is higher on sunny days than on cloudy days, higher in winter than in summer, and higher in the morning than at noon.

Often, when the atmospheric pressure decreases, the weather turns cloudy; When the atmospheric pressure rises, the weather becomes clearer. There are many reasons for changes in air pressure, among which the change in air temperature is a very important cause of air pressure changes.