Why Does The Sun Burn That Long? What is burning?

The main components of the solar atmosphere are hydrogen (about 71% by mass) and helium (about 27% by mass), with 2% of other components. The sun's energy comes from nuclear fusion reactions, and the sun's hydrogen and helium can sustain the sun's nuclear fusion reactions for about 10 billion years, which means that the sun can burn for about 10 billion years, and the burning material is hydrogen and helium. The mass of the sun is huge, the sun loses about 4 million tons of mass per second, but it is insignificant for a huge solar mass, so the sun can burn for quite a long time.

The 10 billion years of the sun's life includes 9 billion years of hydrogen fusion and 1 billion years of helium fusion, the hydrogen fusion period is the current solar period, and when the sun's hydrogen is exhausted, the sun begins helium fusion, which will push the outer material farther away, and the radius of the sun will increase dramatically, becoming a red giant, and when the helium is also burned out, the sun will shrink into a dwarf star, which is the final destination of the sun. The sun has been burning for about 5 billion years now, and there are still about 4 billion years to go, and the sun will become a red star capable of devouring the earth, and the sun is coming to an end, and the earth's civilization is over.

The sun itself is a huge nuclear energy that is fusing and has been in action for a long time. Looking at us human beings, from a microscopic point of view, it is like a group of bacteria watching a big oil tank burning, and the bacteria do not know how many generations have changed, and the big oil tank is still burning again. I feel like I can't finish burning.

The temperature of the sun is so high, the matter should exist in the form of atoms, and due to the high temperature, nuclear fusion has occurred, and now it is mainly the process of hydrogen turning into helium, the raw materials are abundant, so the reaction time is long, when the hydrogen reaction is completed, helium will participate in the reaction, at this time the sun will enter the era of red giants, and the sun will go to the graveyard.

This is the question of the origin of the universe. There is a lot of hydrogen and helium on the sun, and they can undergo nuclear fusion, losing a part of their mass to energy. According to Einstein's theory of relativity e mc c, a small amount of mass can be converted into a large amount of energy.

That's why solar energy burns non-stop. In 5 billion years, the sun will disappear.

Nuclear fusion, the energy emitted is a huge e=mc 2, and the huge mass of the sun itself is the fundamental guarantee for its long-term combustion, as far as the current occurrence is hydrogen nuclear fusion, the light elements continue to fuse into heavy elements, and finally converted into iron elements, fusion does not happen. At this time, the Sun will become a very dense white dwarf, about the size of the Earth.

The sun is doing nuclear fusion.

The reason why it can be burned is because the sun contains many raw materials.

What else do you not understand.

The combustion of the sun is not the same as the combustion we usually see, the interior of the sun is continuously engaged in hydrogen fusion, and its light and heat are produced by nuclear fusion.

Nuclear fusion, also known as thermonuclear reactions, refers to the combination of small atoms, such as a deuterium nucleus (made up of a proton and a neutron) or tritium nucleus (made up of a proton and one or two neutrons), combined into a new atomic nucleus, helium nucleus, under ultra-high temperature conditions, thus releasing a huge amount of nuclear energy. Inside the sun, hydrogen nuclei undergo fusion at ultra-high temperatures, releasing huge amounts of nuclear energy in the form of heat and light. It can be said that the hydrogen bomb** is happening in the core of the sun all the time, which is more powerful than the atomic bomb**.

With the development of science and technology, researchers use the principle of nuclear fusion to carry out the research and development of "artificial sun". The "artificial sun" has a sun-like nuclear fusion reaction mechanism, and brings together cutting-edge technologies such as "ultra-high temperature", "ultra-low temperature", "ultra-high vacuum", "ultra-strong magnetic field", and "ultra-high current", and successfully achieves repeatable plasma operation of 101 seconds Celsius and 20 seconds of 100 million degrees Celsius.

I think you can consider the conditions of combustion, combustibles, temperature, and there seems to be no oxygen, so it shouldn't be called combustion, maybe.

So, as the upstairs said, there was nuclear fusion. Nuclear fusion is going to release a huge amount of energy, and there will be heat.

The activity of the sun is at its core. The pressure at the core of the Sun is 34 billion times greater than that of the Earth. Nuclear fusion is happening here.

Fusion causes four protons or hydrogen atoms to produce an alpha particle or helium nucleus. The mass of the alpha particle is smaller than that of four protons, and the remaining mass is converted into energy and released to the surface of the sun, where it emits light and heat through the convection process. It takes millions of years for the energy of the sun's core to reach its surface.

Every second, 700 million tons of hydrogen are converted into helium. In the process, about five million tons of net energy are released, thus enabling the sun to shine.

It doesn't burn all the time.

1. The sun is not "burning" in the general sense, and the combustion we usually talk about is a violent oxidation reaction of luminescence and heat release.

2. What happens in the sun is a thermonuclear reaction, which is nuclear fusion.

3. Nuclear fusion of stars is not all carried out at once, and only a small proportion can react.

4. Solar nuclear fusion is estimated to continue for billions of years.

It's a nuclear reaction. The sun did not burn, but the sun was formed by an early hydrogen gas mass, and the internal temperature was high and the pressure was very high, so that the hydrogen reacted with each other to form helium, releasing energy, and did not need oxygen, because his chemical reaction did not need oxygen The sun is like this, and in another 10 billion years, the sun will have no energy and become a neutron star.

Solar energy comes from thermonuclear fusion inside the sun. Indeed, the sun's energy is not on its surface, but in its core part. The temperature in the center of the sun is as high as 15 million degrees Celsius, and the pressure is enormous.

Under these high temperature and pressure conditions, the atomic structure of matter is destroyed, and as a result, hydrogen nuclei may combine into helium nuclei through some atomic reactions. Every 4 hydrogen nuclei combine into 1 helium nucleus, and the energy released at the same time is more than 1 million times greater than the original. Later, scientists discovered that the sun is so rich in hydrogen that it can carry out thermonuclear reactions for more than 10 billion years without stopping.

Therefore, thermonuclear fusion inside the sun is the real reason why the sun shines and heats. It is with the light of the sun that the earth is so vibrant.

It's not combustion, it's nuclear fusion, where the nuclei of four hydrogen atoms fuse into one helium atom, or a few isotope atoms of hydrogen, emitting a lot of internal energy and light energy.

No, the reason why the sun seems to be burning is because the hydrogen atoms in his body are constantly radiating, turning into helium atoms and not disappearing, how can it be gone?

The sun is not burned by oxygen,,, the sun is burned by hydrogen fuel inside.

Satisfied. It's nuclear fusion.

Thermonuclear fusion inside the sun is the real cause of the sun's luminescence and heat, and the hydrogen content on the sun is so abundant that it can carry out thermonuclear reactions for more than 10 billion years without stopping.

Solar energy comes from the thermonuclear fusion inside the sun, the sun's energy is not on its surface, and in the core part of the sun, the temperature of the center of the sun is as high as 15 million degrees Celsius, the pressure is very huge, under high temperature and high pressure conditions, the atomic structure of matter is destroyed, the result is that the hydrogen nucleus may be combined into a helium nucleus through some proto-nanon reactions, and every 4 hydrogen nuclei are combined into 1 helium nucleus, and the energy released at the same time is more than 1 million times greater than the original.

Because of the fact that the sun has always been burning inside, nuclear fusion, nuclear fission reactions, and huge amounts of energy, so it has never burned. When these reactions are gone, they will burn clean.

Because the sun's face has been undergoing different degrees of nuclear fission, it will burn straight away. But the hail stops burning when all the sun's material has burned up.

Because there are some ingredients in the sun, this kind of thing can burn all the time. Almost tens of billions of years from now.

Because the sun consumes more material every day, the total mass will change, and helium fusion will take place. It will not burn out, because there is a lot of material in the sun.

This is because the sun is a light source, so it will always heat up and burn. In its current condition, it won't burn out.

Because the sun itself is a very hot planet. It will take many years before it can burn out, and the heat of the sun is very high.