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Thermonuclear reactions only occur in the core of the star because that's where the heat and pressure is so great that it overcomes the forces between the atoms. The surface stars is relatively cool. The Sun is only around 10,000° F on its surface. well below the several million degrees required for fusion.
What else can I help you with?
Does hydrogen fusion occur in the corona?
Hydrogen fusion does not occur in the corona of the sun. Fusion reactions occur in the sun's core where conditions are hot and dense enough for hydrogen nuclei to combine to form helium, releasing energy in the process. The corona is cooler and less dense than the core, so fusion cannot take place there.
What layer of the sun does fusion occur?
Nuclear fusion occurs in the solar core.
Hypothesize what will happen when the sun exhausts it's supply of hydrogen?
When a main sequence star, such as our sun, exhausts it's supply of Hydrogen, fusion of Hydrogen to Helium ceases in the core. This results in cooling of the core and therefore causes it to contract. As the core contracts, the layers surrounding the star gain kinetic energy until the fusion of Hydrogen is possible in the outer layers. As these layers undergo fusion, they increase in temperature dramatically. The outer layers expand due to heat, and the star becomes massive; the main sequence star has evolved into a red giant. Fusion of Hydrogen to Helium continues in the outer layers, whilst the fusion of heavier elements such as carbon occurs in the core.
Which star expands due to fusion?
As a star ages and runs out of fuel in its core, it can expand in size as it transitions into a red giant. During this phase, fusion reactions occur in the outer layers of the star, causing it to expand and cool. This expansion happens when the star exhausts its hydrogen fuel and begins fusing helium in its core.
Which changes occur in the composition of the earths layers from the surface to the core?
material is hotter and denser
Why does fusion occur in the suns core but not in other layers?
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Why does fusion occur in the sun core but not in other layer?
The Sun's core is hotter, and at a higher pressure, than the outer layers. I assume there is a very small amount of fusion in the outer layers, but not enough to make a real difference.
Where does the fusion reaction occur in the sun?
Fusion occurs in the core of the sun and other stars.
Why does fusion occur in the suns core but not in other layer?
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Where does hydrogen fusion occur when there is no hydrogen left in the core of a star?
If there is no hydrogen left at the core of star then hydrogen fusion cannot occur. What happens in the core of a star before that happens is that helium begins to fuse, and then the other elements going up the periodic table until carbon. And then if the star explodes into a supernova, traces of the higher elements are fused as well.
Where does the fusion reacion occur on the sun?
Fusion occurs in the core of the Sun
Does hydrogen fusion occur in the corona?
Hydrogen fusion does not occur in the corona of the sun. Fusion reactions occur in the sun's core where conditions are hot and dense enough for hydrogen nuclei to combine to form helium, releasing energy in the process. The corona is cooler and less dense than the core, so fusion cannot take place there.
Which part of the newborn star does fusion occur?
In all stars, the fusion only occurs in the inner core.
What does the inside of a star look like?
The inside of a star consists of different layers, including a core where nuclear fusion reactions occur. As you move outward from the core, you encounter layers of hydrogen and helium undergoing fusion, followed by layers of gases in different states due to temperature and pressure variations. The outermost layer is the star's atmosphere, where gases are less dense and extend into space.
How does nuclear fusion occur in the sun's interior core?
High temp and pressure
What layer of the sun does fusion occur?
Nuclear fusion occurs in the solar core.
What is inside of the sun called?
The core of the sun is where nuclear fusion reactions occur, converting hydrogen into helium and releasing energy in the form of light and heat. Surrounding the core are layers of plasma, including the radiative zone and convective zone, that transport this energy to the sun's surface.
