0
No, normally it occurs at temperatures of millions of degrees. It does occur at room temperature, but not in significant amount; any possible practical use of "cold fusion" is, so far, speculation.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Does nuclear fusion occur in the sun's corona?
No, while it is hot enough the pressure is too low.
What happens to the low mass star when the nuclear fusion stops?
It stops at about 0.12 seconds.
Does the onset of fusion reactions inside stars require high or low density and high or low temperature?
Starting the fusion reactions required high density and high heat.
Why does your body allows chemical reactions to occur at low temperature?
My butt
Is sustained nuclear fusion possible?
It hasn't been achieved yet, and it seems doubtful that it is possible. You may want to read the Wikipedia article on cold fusion to get a more detailed overview. To summarize it: the muon-catalyzed kind definitely is possible and is routinely done by researchers in the field - the problem is that it requires more energy to generate the muons than you can get out of the fusion. The Fleischmann and Pons kind appears to have been poor laboratory technique (I'm being charitable here, and not suggesting that it was deliberate fraud).
Does nuclear fusion occur in the sun's corona?
No, while it is hot enough the pressure is too low.
Why only in the sun's core does nuclear fusion occur?
The rest of the sun is too cold and too low pressure.
Does fusion occur only under extremely high temperatures?
Nuclear fusion of light elements is the process operating in the stars to produce energy, and needs very high temperature to occur. Experiments on earth to aim at producing useful power from fusion have been progressing for many years. The reactants most likely to be used are isotopes of hydrogen, deuterium and tritium. These need to be heated to some hundreds of millions of degrees kelvin before reaction starts. Fusion reactions have been seen, but only for less than 1 second so far. Fusion is not a chemical reaction, it is a nuclear process.
How are low mass star born?
Low mass stars are created in the same way as all other stars, with one exception. They do not accumulate enough mass to create enough pressure in the core for nuclear fusion to occur. They "glow" because of the external pressure on the core but this is not enough to initiate nuclear fusion.
What are the process in which nuclei with small masses are combined to form a nucleus with a larger mass?
Combining the nuclei of atoms is called Nuclear Fusion. A reaction that is found in stars.
What happens to the low mass star when the nuclear fusion stops?
It stops at about 0.12 seconds.
Does the onset of fusion reactions inside stars require high or low density and high or low temperature?
Starting the fusion reactions required high density and high heat.
What degree does metal contract at?
Contraction occur at low temperature.
What is two or more low mass atomic nuclei fuse to form another heavier nucleus is called?
nuclear fusion
Can nuclear submarines meltdown?
Under the worst possible conditions, a meltdown can occur in a nuclear submarine. It is an event of low probability, however.
What happens if a fusion bomb if it crashes into nuclear bomb?
I do not understand what you are asking because of a definition problem. A nuclear bomb can be either a fission or fusion bomb. Also a physical crash of nuclear devices is most likely to simply detonate their conventional explosives regardless of whether they are fission or fusion (although modern low shock sensitivity explosives make this less likely than it was).
Why enormously high temperature necessary for fusion reaction to take place?
Because the nuclei involved have to be squeezed very hard together, to overcome the repulsion that similar charges naturally have for each other (ie electrostatic repulsion). In fact in experiments on earth with tokamaks, the pressure is not high but temperatures have to be made extremely high, higher than in stars where pressure at the star's centre is very much higher than can be achieved on earth. This is to encourage the nuclei to get close enough for fusion to occur, but so far on earth only short bursts of fusion have been achieved, whereas the sun has been burning for billions of years.
