Non standard atmospheric pressure, the boiling point of water is 80 degrees, can you drink the water

Of course not. Even if the air pressure is in that place, you can see that the water is boiling, but the water of 80 is still only 80, and toxic substances cannot be discharged.

In general, we boil water and drink tap water, which usually comes from a nearby river or lake. Think about it, how dirty the lake is. Take my neighborhood as an example, anyway, I grew up hearing about the river near our house, the sewer water in our area, the domestic sewage, and the food scraps that are discharged into the river.

When I first heard about it, I was so sick that I didn't want to touch the tap water in our house at all, and I brushed my teeth with water from the water dispenser. Later, when I grew up and had a little IQ, I knew that I had to go through purification before I could discharge it into the river, the age of youth and ignorance, haha. But even if you think about it, it's still dirty, we have the kind of restaurant on the river that runs on a boat, and I've heard of people defecating in the river.

These are unprocessed. That's why tap water is disinfected again at the waterworks before it comes to each of our homes, this time with chlorine. The unique smell of tap water we smell is actually the smell of chlorine.

The biggest hazard of chlorinated water is that it contains halogenated hydrocarbons and chloroform. These two substances are carcinogenic. So when we boil water to drink, don't just boil it, the best thing is to let the water reach 100 and then boil it for 3 minutes, so that these toxic substances evaporate with the water vapor.

Then we drink more water and it will become beautiful.

Of course, if you are in a place where there is a shortage of water, let alone boiling the water, many people may drink raw water, which seems to be nothing at the time, but it is very bad for the body in the long run, maybe there are parasites in the water, and then develop in your stomach and become a long one, which is disgusting to think about. However, special treatment is given in special circumstances, and more attention will be paid to the conditions in the future.

You can drink it, even if it's raw water, but some bacteria haven't been completely killed at 80 degrees Celsius, so you may have diarrhea if you drink it.

It's not that the water is boiling and it is necessarily hot water, if I lower the air pressure, maybe the water will boil at 0 degrees Celsius, which is of course impossible on Earth. Maybe this kind of thing will happen on other planets, which is why only the earth has water resources, and other planets have other factors that cause water not to appear in addition to their own high temperatures.

When water reaches 100 degrees Celsius at standard atmospheric pressure, it begins to boil and vaporizes to form gas. At this time, even many bacteria and viruses that are resistant to high temperatures are basically destroyed by the boiling water and die of the substances in the body. It's just that this non-standard atmospheric pressure begins to boil when it does not reach 100 degrees Celsius, and some germs need the water temperature to reach 100 degrees Celsius to destroy the substances in the body, so that they are completely killed.

That's why we humans often need to drink boiling hot water to reduce our chances of getting sick.

At the same time, boiling hot water can also be used for physical disinfection, such as the clothes worn by a patient with a cold at home, and the items he wears and use, it is best to soak or boil them in hot water to avoid spreading the virus to other people in the family. In fact, the boiling point is just a critical point for water to change from liquid to gas, and even if it does not vaporize, water will evaporate. But what we need is to boil the water to 100 degrees Celsius before we can get pure water, to make sure that we don't drink some microorganisms or bacteria and viruses when drinking.

Of course, boiling water with a boiling point of 80 degrees can be drunk.

At high altitudes, the boiling point of water decreases, such as 80 degrees, when the boiled water has completely killed the bacteria, and there is no problem of live bacterial infection.

Streptococci that can tolerate high temperatures in terrestrial environments.

Lactobacillus, etc., the maximum tolerance temperature is 63 degrees, so 80 degrees is enough for sterilization.

Some extreme environmental fungi that can tolerate ultra-high temperatures survive in submarine volcanic craters and other places, and they freeze to death first when they encounter low atmospheric temperatures, which cannot affect humans.

The only drawback of 80-degree water is that it is not good for making tea. In particular, the ideal tasting temperature for certain teas is 90 to 95 degrees. Tea lovers will have to find another way.

Let's start with my opinion: it will boil, and it will also absorb heat.

The reason why I think this is because the boiling point of water is related to atmospheric pressure, and even under the condition of being below one standard atmospheric pressure, the boiling point of water only decreases, and the temperature does not change when boiling, and it continues to absorb heat.

When water is boiling, it absorbs heat while the temperature does not change because the heat absorbed by the water is mainly used to increase the molecular potential energy.

So, it seems to me, no matter what others think, I insist that water still absorbs heat when it boils below standard atmospheric pressure.

Decalescence. Water needs to absorb heat all the time while it is boiling.

The temperature at which water boils is called the boiling point of water, and we usually say that "the boiling point of water is 100", which refers to the temperature at which water boils at one atmosphere (standard atmospheric pressure). So is the boiling point of water set in stone? No.

The boiling point of water varies with the atmospheric pressure: as the air pressure increases, the boiling point rises. Because the atmospheric pressure on the surface of the water always prevents water molecules from evaporating, when the air pressure rises, the water must have a higher temperature to turn into water vapor.

Generally at low altitudes, atmospheric pressure is basically one atmosphere. Boiling water at a place below sea level (e.g., in a very deep mine) where the air pressure is higher than one atmosphere, and the boiling point of the water rises, and it has been determined that an increase in depth of one kilometer increases the boiling point of the water by 3 degrees.

Conversely, when the air pressure decreases, the boiling point decreases. For example, the higher the altitude, the thinner the air and the lower the air pressure, the boiling point of water in this place decreases. Boil water on Mount Everest, the top of the world, and as soon as it is boiled, the water is boiled "boiled".

Such "boiling water" does not cook the meal and does not kill certain bacteria. For this reason, geologists and mountaineers use high-pressure cookers – pressure cookers – when working in the mountains. It is made using the principle of rising boiling point under high pressure.

The sealed lid prevents the vapor inside the pot from escaping, so the air pressure increases, the boiling point increases, and the meal cooks quickly. Under normal use, the air pressure in the household pressure cooker is an atmospheric pressure, and the temperature is generally around 125. When the air pressure in the pot is too high, the safety valve on the pot will automatically open to release a part of the vapor and reduce the air pressure.

The relationship between the boiling point of water and the air pressure.

The boiling point must be lowered, and if you boil water on the Qinghai-Tibet Plateau, it is generally only sixty or seventy degrees.

100 degrees

The temperature at which water boils is called the boiling point of water, and we usually say that "the boiling point of water is 100", which refers to the temperature at which water boils at one atmosphere (standard atmospheric pressure).

Hello, there are two ways, one is to turn down the heating heat when the water is about to boil, and constantly stir or use a spoon to lift the water, and the other is to change the local air pressure of the water and use a pressure cooker or other similar device with a tight seal and very strong to boil the water. Hope it helps.

80 degrees Celsius water, saturated vapor pressure is:

That is, it can boil under air pressure.

Data from: Chen Minheng, ed., "Principles of Chemical Engineering (Third Edition)" at the end of the book.

Pa, the data comes from elsewhere. The reference data lists the saturated vapor pressure starting at 0° in 1° increments. You can find it all.

The exact value is not clear, but the concept is: the higher the altitude, the lower the air pressure, resulting in a decrease in the boiling point. So, the boiling point of water is 80 below one standard atmosphere.

The boiling point of water is 100 degrees at standard atmospheric pressure. Water here refers to pure water. If it is not pure water, it can exceed 100 degrees.

When the water boils for a long time, the gases in the water are driven out, and after such water is cooled, if it is reheated, because there is no air in the water, even if it is heated to 100 degrees, or even 102 degrees, there will still be no boiling phenomenon, and this 102 degrees and no boiling water, we call it "superheated water". Of course, if the water continues to heat and the temperature continues to rise, it can boil at a temperature of more than 100 degrees Celsius. So, at one atmosphere, liquid water can exceed 100 degrees.

With this superheated water, a boiling phenomenon of more than 100 degrees Celsius at atmospheric pressure can occur.

Pure water in the true sense of the word does not vaporize, no matter how high the outside temperature is. Because water molecules need to attach to some small impurities in order to change their state, as for why, I don't know.

Continue to heat and it will boil. If it is kept warm, of course it will not boil.

There are no impurities in the water.

Absolutely pure water will not boil.

It needs to continue to absorb heat in order to boil.

Hehe, upstairs is the right solution.

This problem is the same as the fact that water does not necessarily freeze at 0 degrees Celsius. Water above 100 degrees Celsius turns into gas, and below 0 degrees Celsius water turns into ice.

But 0 and 100 are both tipping points. Boiling point, boiling, freezing point, freezing point are two different words.

The water is boiling, it is 100 degrees Celsius water, and water vapor above 100 degrees Celsius.

Two states of water. If it is not standard atmospheric pressure, the boiling point of water is not 100 degrees Celsius.

For example, if the air pressure in the plateau is low, the boiling point of water is lower than 100 degrees Celsius.

The air pressure in the pressure cooker is greater than the standard atmospheric pressure, and the boiling point of water is higher than 100 degrees Celsius.

When water boils at 100 degrees Celsius, it no longer raises the temperature. Water vapor takes away excess heat and re-condenses into water below 100 degrees Celsius. Therefore, in the form of water vapor, it can only be higher than 100 degrees Celsius.

At standard atmospheric pressure, the boiling point of water is 100 degrees, and continuous heating of water will boil, producing a large amount of water vapor, and the temperature of water vapor is always 100 degrees unless it is burned dry.