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At what temperature do star begin the process of nuclear fusion?
Wiki User
∙ 13y ago
Between 10 and 15 million degrees.
Wiki User
∙ 13y ago
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When does helium fusion begin in a star?
Hydrogen undergoes nuclear fusion to form helium at a temperature of 107 K
Inside a prostar the nuclear fusion of hydrogen will begin when?
The core of the protostar reached an extremely high temperature
What causes the process of nuclear fusion to start in stars?
It is generally thought that as the gasses needed to create a star collect, the gravity that is pulling them together will compress and heat that gas so much that at some point fusion will spontaneously begin.
Does the sun and stars generate energy through nuclear fission reactions?
Stars work on nuclear fusion not fission. When enough material accretes, gravity compresses and heats the material to begin stellar formation. At some point, with enough material and heat, fusion will begin.
How hot must the core of a protostar be to begin nuclear fusion?
When the core of a protostar has reached about 10 million K, pressure within is so great that nuclear fusion of hydrogen begins, and a star is born.
When does helium fusion begin in a star?
Hydrogen undergoes nuclear fusion to form helium at a temperature of 107 K
Inside a prostar the nuclear fusion of hydrogen will begin when?
The core of the protostar reached an extremely high temperature
How hot is the core of a protostar?
The core will reach between 250,000,000 to 500,000,000'C at its stable temperature. Beforehand it will rapidly gain heat from hundreds of thousands to its stable temperature, where it can begin the process of nuclear fusion. Hope that helps!
What is the critical temperature at which nuclear reactions begin?
For nuclear fission reactors there is no critical temperature, though they do have a temperature coefficient which makes the efficiency of the chain reaction vary slightly with temperature. This can be negative or positive, obvously a negative coefficient is preferred and is safer. Nuclear fusion is another matter, and very high temperatures are required in tokamaks to get fusion started
What temperature does star fusion begin to occur?
The minimum temperature is about 10,000,000 degrees Celsius.
What causes the process of nuclear fusion to start in stars?
It is generally thought that as the gasses needed to create a star collect, the gravity that is pulling them together will compress and heat that gas so much that at some point fusion will spontaneously begin.
A protostar becomes a star when?
A star is born when contracting gas and dust from a nebula become so dense and hot that nuclear fusion starts.
Does the sun and stars generate energy through nuclear fission reactions?
Stars work on nuclear fusion not fission. When enough material accretes, gravity compresses and heats the material to begin stellar formation. At some point, with enough material and heat, fusion will begin.
What triggers nuclear fusion stars?
Fusion in stars are usually the result of gravity.Once a mass of hydrogen accumulates enough mass, the gravity of all that mass compresses the core of the star to the point that the hydrogen atoms there begin fusing into helium. The process then cascades outward, and the end result is a star.
How hot must the core of a protostar be to begin nuclear fusion?
When the core of a protostar has reached about 10 million K, pressure within is so great that nuclear fusion of hydrogen begins, and a star is born.
What is the process of binary fission in leshimenia?
The process of binary fusion in leshimenia begin with the the flagella. Leshimenia has a whip like tail on one end which aids in the fission.
How many years does it take a star with mass of the sun to convert its hydrogen to its core?
No star will EVER convert ALL of the hydrogen to helium via nuclear fusion (the process that powers the star) because when the star is less than about 50% hydrogen, the helium gets in the way of the fusion reaction and the star begins to die out. The star will begin to shrink as the star's own gravity now is more powerful than the nuclear reaction, and the star will get more dense and will heat up. If the internal temperature and pressure gets high enough, the star will begin fusing helium into even heavier elements, becoming a red giant. The speed of this reaction depends on the original mass of the star.
