Where does the sun get the O2 from to be able to burn?

Answer 1

Wrong chemistry. Most of the top seven answers are right. The word "burn" is used loosely. Here's three ways of releasing heat (by no means the only ones)

(1) Oxidation, such as combining carbon, hydrogen, nitrogen and sulphur found in coal with O2. That's proper burning. The energy density isn't huge by nuclear standards but it's high enough to get things quite hot.

(2) Nuclear fission - knocking big fat atoms apart with flying neutrons. Commercial nuclear power stations, and "atom bombs" do that. The energy density is pretty high. You have to work quite hard to keep things from getting too hot or the whole lot will collapse (meltdown - three mile island)

(3) Nuclear fusion - taking titchy little atoms (hydrogen) and ramming them together to make bigger ones (helium). The energy density is enormous. The sun, hydrogen bombs and the JET fusion reactor all do that.

Completely different chemistry each time. Beware of commonplace words ("burn") used by journalists to describe science they don't understand!

Answer 2

pub bore ^^^^^ took the words right out of my mouth. The word 'burn' is used to described 15 different chemical and physical processes. The sun the does not burn O2, it produces energy (burns) by undergoing nuclear fission of hydrogen and creating helium in the process. The energy released is so great, it is a self-sustaining reaction, not a burning.

Answer 3

The Sun is powered by nuclear fusion, It does not burn In the same way that say a camp fire would burn. The reaction causes It to emit energy In the form of light and heat.

Answer 4

it does not burn on O2. The power of the sun is generate by a nuclear fusion process, where hydrogen is made into helium under extreme high pressure (and even heavier elements in a later phase).

Answer 5

before each little thing, the end isn't close to. inspite of if the Earth warms 20 ranges and each of the polar ice melts and sea aspect rises 2 hundred ft and ny is below water, this is no longer the end of the international. existence will pass on. the international monetary device will be in shambles, yet human beings would flow inland and live to inform the tale. and no individual, no longer Al Gore, no longer everybody, is conserving it receives as undesirable as that. So purely get over the "end of the international" mentality. the in straight forward words incontrovertible reality that each individual concurs about is the most objective of CO2 is now at about 380 PPM and lengthening. the utmost organic severe of the perfect four hundred,000 years is about three hundred PPM. each individual, including George W. Bush, concurs that we've brought about that advance in CO2. each little thing else, from the quantity of warming we may be able to assume to contemporary temperature of the Earth to the quantity of melting ice is debated. some human beings say that even a spotlight 5 cases the organic aspect (which could be a million,250 PPM) would not damage the ecosystem. we would not attain such severe stages for 1000 years, inspite of if we keep doing what we are doing now. some human beings say that even the 380 PPM will ultimately melt sufficient ice to strengthen sea stages, besides the actual incontrovertible reality that the worst predictions I actually have considered call for a 20 foot upward push, no longer the two hundred that could result from each of the polar ice melting.

Answer 6

The sun does not burn oxygen. There's a nuclear reaction between hydrogen and helium

Answer 7

There is no oxygen in the sun now. Heat is generating by nuclear fusion process where Hydogen changing to Helium now.
The answer given by Solarentric, the astrophysicist, is right.

Answer 8

Only Hydrogen is in fusion process at the moment and the Deuterium, Tritium to Helium fusion cycle is taking process now, here are the reactions of our star's life cycle:
1p + 1e(positron or electron) = 1H.
1H + 1H = 2H. 2-H; 1n-1p = 2-1H(D-Deuterium).
2-1H + 1H = 3-2H(T-Tritium).
2-1H + 3-2H.
D + T = 4-2He(3.5MeV) + 1n(neutrino or neutron) + 1e(positron or electron) = 4.2MeV + 11.4MeV.
MeV=Mega Volt Electron and Photon.
The three Hydrogenisotypes(slang) "or" elements:
Protium (class 2 normal Hydrogen)
Deuterium (class 1 dual Hydrogen) 2-steam.
Tritium (class 1 tri Hydrogen)
Hydrogen can reach 8 isotopes.
The process on second is Helium and this process stems down into (in order):
Helium, Nitrogen, Carbon, Neon, "Oxygen", Magnesium, Silicon, Sulfur, Iron and Nickel (usually at the end of the star's life and at the core). The sun recycles 1 billions of tons. Millions of tons aren't are as much as an ant to the empire estate compared to a million tons to the Sun "Sol-Solar".
O2 is the second isotope of Oxygen the oxide part of dioxide.
Di or De or Duo or Du or Dual means two so O2 is only one isotope of Oxygen as Di means two the two in O2 shows "Dioxygen" or "Dioxide".

Answer 9

Actually It is a Hydrogen Reaction as in a Nuclear Blast. Just like a Nuclear weapon but on a larger scale.

Answer 10

It doesn't. The sun burns via nuclear reaction.