Geophysical problems, solving. 5

In fact, how much air dissolves in water - that is, solubility, is related to the temperature of water, the higher the temperature of water, the less solubility to air, the boiling point of water at a standard atmospheric pressure is 100 degrees, that is, at a standard atmospheric pressure, after the water temperature reaches 100 degrees, the air originally dissolved in water precipitates a large amount and is released in the form of bubbles, so we say that the water boils.

It is conceivable that when the air pressure increases, it will prevent the precipitation of air from the water to a certain extent, because the increase in air pressure is actually to press air into the water, for example: the carbonated drinks we often drink are made by pressing carbon dioxide into the liquid at high pressure.

So, at one standard atmosphere, water will precipitate a lot of air at 100 degrees, but above one standard atmosphere, such as in a pressure cooker, it will prevent a lot of air from precipitating, and the water will not boil at 100 degrees.

It can be seen that the higher the air pressure, the higher the boiling point of water.

I don't know the second question, I don't know much about geography.

Well, what the previous ones said is correct, and the theory of this relationship should be learned at university.

For middle school, such complex knowledge is not needed.

Just now I searched on the Internet with "the relationship between atmospheric pressure and the boiling point of water", there is still some information, and there are some relevant data that others have experimented, you can search for it yourself, and find some useful information to see.

1.The higher the atmospheric pressure of the pressure cooker, the higher the boiling point of the water.

2.Two atmospheres is one meaning.

Geographically, air pressure mainly refers to atmospheric pressure, which is not calculated, and is mostly calculated by p=f s in physics. The area of air pressure on the pressure cooker is the area of the air pressure valve.

First of all, correct the explanation of the boiling point of the guy above. Water boiling is not due to the process by which the air dissolved into the water precipitates as the temperature increases. Rather, water exists in three forms, namely:

solid, ice; liquid, water; Gaseous, water vapor. The morphology that exists at different temperatures is different, and this difference is due to the result of the law of human motion of its water molecules. The lower the temperature, the slower the molecular movement, and the higher the temperature, the more intense the movement.

So the boiling of water is a drastic process of liquid water vaporization into water vapor. The boiling liquid remains at a stable temperature due to the fact that the movement of molecules during vaporization absorbs a large amount of heat, which counteracts the heat increased by heating, which is called the boiling point.

Correct the landlord again, the air pressure on the pressure cooker is not called atmospheric pressure, atmospheric pressure specifically refers to the air pressure in the atmospheric environment. Due to the increase of air pressure in the pressure cooker, its essence is that the number of molecules in the air per unit space increases, and the freedom of the movement of a single molecule is limited by the intermolecular force, resulting in its thermal motion being restricted, so that the speed of taking away heat during its vaporization process is reduced, and under the same heating conditions, the boiling liquid will accumulate more heat and cause its temperature to rise, which is manifested as an increase in boiling point.

Air pressure is the pressure of the gas, and they both refer to the same thing.

1. The higher the air pressure, the higher the boiling point of water.

2. It must not be (I once had questions about this, and after asking the teacher, I came to a conclusion).

The non-monsoon area is far away from the sea, the altitude is higher, and the air pressure is relatively low, and the corresponding pressure cooker has the same boiling point at high altitude, but it is not exactly the same understanding, after all, the monsoon area of the earth and the non-monsoon area are not necessarily the difference between high and low altitude, after all, not all continents have the same terrain as China.

1.The air pressure increases, and the boiling point of the water increases.

2.The same.

1.The air pressure is high, and the boiling point is high.

2.The same is pressure.

The shortest distance between two points is to walk the inferior arc of the great circle between two points. The same north-north, south-south, and the same meridian coil go to the pole.

Same North North: Same North means in the Northern Hemisphere. Because the distance between latitudes does not change the farther north, the distance between two degrees of longitude decreases. The greater the latitude, the shorter the distance between two degrees of longitude. The latitude is 90 degrees, and the distance of longitude is 0, which is the pole.

For example, the distance from 10 degrees north latitude to 11 degrees north latitude is 110 km, the distance from 10 degrees longitude to 11 degrees longitude is 110 km, the distance from 11 degrees north latitude to 12 degrees north latitude is 110 km, and the distance from 11 degrees longitude to 12 degrees longitude is less than 110 km. The greater the latitude, the shorter the distance between two degrees of longitude. The shortest distance between two points is the inferior arc of the great circle between two points, that is, the shortest distance between two longitudes.

Same as south-south: Same as above.

With the north of the north means that the same in the northern hemisphere of the two points where they are located in the great circle will pass through the point in the middle of them to the north of the place, take a globe to see, only they and the center of the earth when the same plane when the inferior arc is the shortest, if you can't think of it, just use watermelon, cut a knife from the big circle, and then cut a knife, compare the length of the inferior arc of the section can be, with the south of the south is also the truth.

The shortest distance between two points is to walk the inferior arc of the great circle between two points.

I understand this sentence and have learned it. I don't understand you below, you can imagine that the earth is a sphere at two points of the same sphere, and if you cut a circle surface through the center of the sphere and the two points, the circle will be divided into two arcs by the two points, and the inferior arc is the shortest distance.

The same north-north, south-south, and the same meridian coil go to the pole.

Does it mean that two points in the same hemisphere, if they are both in the northern hemisphere, the inferior arc will be in the northerly direction of a certain point, and when you actually go, you should start in the northerly direction. And two points on the same meridian, that is, the kind of time difference of 12 hours, in the same hemisphere, it is the shortest distance to go through the pole, which is also the application of the above sentence, but it is a coincidence that the round surface cut down just cut the earth along the pole...

It is the same as the northern hemisphere, going to the northerly arc, and the same is the southern hemisphere, going to the southerly arc. On the same meridian coil, directly due north or due south over the pole.

The meaning is: when the earth revolves counterclockwise, when the earth's axis is tilted to the left, the figure on the left is the winter solstice; When the Earth's axis is tilted to the right, the figure on the right is the winter solstice – that is, left-leaning left winter and right-leaning right winter.

The geographically sloping axis is tilted to the left, so the C figure on the left is the winter solstice.

The axis of the earth in the image above is tilted to the right, so the D figure on the right is the winter solstice.

According to the tilt direction of the earth's axis, you can judge by looking at the polar day and night conditions, and there is no need to remember the rules!

If the isotherm protrudes towards high latitudes, the temperature is higher than that at the same latitude. If the area is on land, it is: summer land, low-lying terrain; If the area is over the ocean, it is: Winter ocean, warm currents pass through.

A is false, June 22 is the summer solstice, the sun shines directly on the Tropic of Capricorn, in the southern hemisphere, even if you see the sun at noon at the equator at noon, the maximum is only degrees, more than this degree must be in the northern hemisphere, according to the height of the sun, it can be calculated that the C region may be in (90-40) south latitude, (90-40) + north latitude, B region may be in the south latitude, 90-60 + north latitude so B is wrongd is also wrong, because the southern temperate zone can also be measured by the solar altitude of 20 degrees c correctly. I hope my answer is helpful to you, thank you for adopting!

I feel the same way, I'm down, and I still can't see the words. . .

a.A will only be in the Northern Hemisphere, and the latitude of A is the Tropic of Cancer plus or minus 10 degrees BWhen C is in the Southern Hemisphere and B is in the Northern Hemisphere, C is more than 30 degrees south latitude and B is more than 40 degrees north latitude dIf Ding is in the Southern Hemisphere, in the temperate zone.

Children, just a formula for the height angle of the sun can solve the problem... Study that formula well.

A is false, it cannot be in the southern hemisphere, because the sun directly hits the Tropic of Cancer on the summer solstice, the noon solar altitude angle of the Tropic of Cancer is 90 degrees, and the noon solar altitude angle of place A is 80 degrees, indicating that place A is 10 degrees away from the Tropic of Cancer on the north and south sides of the Tropic of Capricorn, so it can be inferred that it is impossible to be in the southern hemisphere.

B is false, the latitude of place C is not necessarily higher than that of place B, because the sun shines directly on the Tropic of Capricorn, place C may be in the southern hemisphere, if place C is in the southern hemisphere, then the latitude is 23 degrees 26 minutes north latitude minus 50 degrees north latitude is equal to 26 degrees 34 minutes south latitude; If place B were in the Northern Hemisphere, that would be 23 degrees 26 minutes north latitude plus 30 degrees north latitude would be 53 degrees 26 minutes north latitude.

C, if A and B are both in the Northern Hemisphere, place A is equal to 23 degrees 26 minutes north latitude plus 10 degrees north latitude is equal to 33 degrees 26 minutes north latitude, and place B is equal to 23 degrees 26 minutes north latitude plus 30 degrees north latitude is equal to 53 degrees 26 minutes north latitude; If place A is south of the Tropic of Cancer, then latitude is equal to 23 degrees 26 minutes minus 10 degrees is equal to 13 degrees 26 minutes north latitude, and if place B is in the southern hemisphere, it is 23 degrees 26 minutes minus 30 degrees is equal to 6 degrees 34 minutes south latitude, which seems to be true.

D is false, Ding Di may be in the Southern Hemisphere, or it may be in the Northern Hemisphere, Ding Di is equal to 23 degrees 26 minutes north latitude plus 70 degrees is equal to 86 degrees 34 minutes north latitude (a few degrees south of the North Pole is 90 degrees north latitude minus a few degrees), Ding Di in the Southern Hemisphere is 23 degrees 26 minutes minus 70 degrees is equal to 46 degrees 34 minutes south latitude, so it is not necessarily correct.

Boss, you have to make people see your words!!

Boss, you have to let people see your words, I've got them down, and I still can't see them.

Hello lz.

For the high pressure and low pressure of the thermodynamic (remember the thermodynamic!!) Dynamic dissatisfaction) to take low pressure as an example, the low air flow to the inward radiation and rise, the ground is low pressure, but at high altitude, the air flow is reversed radiation, in the high altitude is high pressure is a bit like this feeling (the structure of the northern hemisphere thermal low pressure) so for low pressure, the low surface of isobaric pressure is concave, the ground is low pressure, and the high altitude is convex, is high pressure (the high altitude here is at the top of the troposphere).

The same goes for high pressure All in all, that's how it feels.

There is a simpler way to understand it.

Because the low pressure on the ground continuously transports air molecules directly above it, so that the number of air molecules above the low pressure is higher than that of the surrounding area, the high altitude of the low pressure is high pressure.

The ground high pressure continuously draws air molecules from directly above to sink, so that the number of air molecules above the high pressure is lower than that of the periphery, so the high altitude of the high pressure is low pressure.

As shown in the figure, a near the ground heats, the air expands and rises, a large amount of air rises to the high altitude, the density of the air at high altitude increases, forming high pressure, and the air density near the ground decreases, forming a low pressure area. At point b, the cooling air near the surface shrinks and sinks, forming a low pressure area in the air, and the air density near the surface increases, forming a high pressure area.

In the diagram, the heights of a and b are equal, and the air pressure of a' and b' is equal, but the height of a' is lower than a, so the air pressure of a is lower than a', and the air pressure at b is higher than b'. That is, the isobaric facing high altitude protruding air pressure is high, and the isobaric convex air pressure facing the ground is low.

In the diagram, the heights of d and c are equal, and the air pressure of d' and c' is equal, but the height of c' is lower than c, so the air pressure of c is lower than that of c', and the air pressure at d is higher than d'. That is, the isobaric facing high altitude protruding air pressure is high, and the isobaric convex air pressure facing the ground is low.

It is related to temperature, and at standard atmospheric pressure, the higher the temperature, the lower the air pressure.

1. Changes in the length of day and night.

Problem: Characteristics of the morning and dusk line: a morning and dusk line (flat and perpendicular to the front) of the sun with repentant rays.

bThe morning and dusk lines are crossed (the center of the sphere), and the equinox (the earth).

c. The morning and dusk lines pass during the spring and autumn equinoxes (the two poles).

dThe morning and dusk lines at the winter and summer solstices are tangent to the Arctic and Antarctic Circles.

2. Monsoon circulation.

The causes of the South Asian monsoon (winter monsoon) (Northeast Trade Wind Hall).

3. Weather front system.

Precipitation distribution (cold front) - post-front precipitation - (warm front) - precipitation before the front --- precipitation type (cold front) - frontal rain - (warm front) - frontal rain --- 4. From magma to the formation of various rocks, the three types of rocks can be transformed into each other, and then to the generation of new magma, this movement and change process constitutes the cyclic process of rocks--。

cSettlements prone to mudslides and floods are located in valleys or at the outskirts of valleys, on relatively low ground. These sites are directly threatened by flooding and mudslides from the valleys.

Figure A is located in a valley, near a river, and is vulnerable to flooding; B and D are located in the valley, at the exit of the mountain pass, which is prone to flash floods and mudslides; The C settlement is located on a plateau in the mountains, and there is a deep ravine near the settlement, which can guide flash floods and mudslides to avoid the settlement.

From west to east, cross the international date line minus one day, the figure shows the northern hemisphere, rotating counterclockwise, so ni is the international date line, the longitude is 180°, then na is the 0 time longitude.

It is also known that the angular ani degree is 120°, and 180° goes west and 120° is 60°E, so NA is 60°E.

There is no point B in the diagram, so NB cannot be found.

If it is 120°E in Beijing, if it is 0 at 60°E, it will be 4 o'clock in Beijing, and if it is 120°E in the non-shaded part, it will be March 22.

Not really. Is this from high school?

【Analysis】Question 3, this question tests the knowledge of the earth's movement. This question can be converted to the following figure, the shortest distance of the sphere of nm is 2 553 km, if am is the dusk line, then the northern hemisphere is winter, so "the snow flies and freezes in the Summer Palace in Beijing" is correct.

Question 4, this question examines the calculation of latitude and longitude. The shortest distance of the sphere of nm is 2 553 km, so the latitude difference between the two places is 23°, then the latitude of the place is 67°n; The shortest time of the solar shadow in M is 12 o'clock local time, and Beijing time is 12:40 o'clock, so the longitude of this place is 110°E, so option B is correct.