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Why does fusion require such a high temperature before it can begin?
Wiki User
∙ 13y ago
You need to have such a high temperature so that the positively charged nuclei can get close enough together for the strong nuclear force to be greater than the electromagnetic repulsion between them.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agogot to get enough energy to get positively charged nuclei that strongly repel each other to collide head on and stick together. Lots of heat and pressure is easiest way.
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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 does water begin to do when its temperature reaches the dew point?
condense
When the temperature increases the particles of the liquid inside a thermometer begin to move faster and what else?
Friction of the particles will increase the temperature. This is how a microwave works.
When the temperature is near absolute zero what do the atoms begin to do?
The vibrate less vigorously.
Ice will begin to melt when?
Ice will melt when the surrounding temperature is above 0.C (Zero Degrees Celsius)
What temperature does star fusion begin to occur?
The minimum temperature is about 10,000,000 degrees Celsius.
When does helium fusion begin in a star?
Hydrogen undergoes nuclear fusion to form helium at a temperature of 107 K
At what temperature do star begin the process of nuclear fusion?
Between 10 and 15 million degrees.
Inside a prostar the nuclear fusion of hydrogen will begin when?
The core of the protostar reached an extremely high temperature
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
When will helium fusion begin?
5 min
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!
Which operations require you to align numbers using their decimal points before you begin a calculation?
Addition and subtraction.
How do fusion reactions begin?
one particle has to travel rely fast
How does fusion begin in a sun-sized star?
During the main sequence of the star.
What game or sport must you throw a double before you can begin scoring?
This is a rule in some versions of darts; the World Championships does not require it, for example.
What happen before a blizzard?
The primary things that happen before a blizzard are a drop in temperature and an increase in cloud cover. The sky will begin to darken as the imminent storm approaches.
