In stars it starts due to the great pressure at the star's center, which compresses the hydrogen and raises temperature to a condition where fusion commences. On Earth in man made equipment such as tokamaks, the pressure is much lower and the temperature has to be raised to hundreds of millions of degC to start fusion in a plasma of deuterium and tritium
In a thermonuclear fusion reaction, the process begins when the high temperature and pressure inside a fusion reactor cause hydrogen nuclei (protons) to overcome their electrostatic repulsion and fuse together, forming helium and releasing a large amount of energy in the form of heat and light. This reaction typically starts once the conditions are optimal for sustaining a self-sustaining fusion reaction.
The thermonuclear reaction in the sun produces vast amounts of energy through the fusion of hydrogen atoms.
The high temperatures produced by the explosion of a fission bomb are necessary for initiating the fusion reaction in a thermonuclear device because fusion reactions require extremely high temperatures and pressures to overcome the repulsive forces between positively charged nuclei. The fission explosion provides the energy needed to achieve these conditions, thereby allowing the fusion reaction to take place.
A fission reaction is not necessary for a fusion reaction. Fission reactions involve breaking apart heavy atomic nuclei, which releases energy. Fusion reactions involve combining light atomic nuclei, also releasing energy, but under different conditions. One does not require the other to occur.
An atomic bomb relies on fission (splitting of atoms) to create an explosive chain reaction, while a thermonuclear bomb, also known as a hydrogen bomb, uses both fission and fusion (merging of atoms) to create a much more powerful explosion. Thermonuclear bombs are more destructive than atomic bombs.
Nuclear weapons rely on nuclear fission to release energy, while thermonuclear weapons (hydrogen bombs) use both nuclear fusion and fission reactions to generate a much more powerful explosion. Thermonuclear weapons are considered more destructive and have the capability to produce significantly larger explosions than traditional nuclear weapons.
A fusion reaction.
It simply means that thermonuclear fusion happens.
thermonuclear fusion and hydrogen becoming helium... :)
The thermonuclear reaction in the sun produces vast amounts of energy through the fusion of hydrogen atoms.
These are not chemical reactions but thermonuclear reactions.
The main thermonuclear reaction in the sun is the fusion of hydrogen nuclei (protons) into helium nuclei. This process, known as nuclear fusion, releases a tremendous amount of heat energy and is responsible for powering the sun and providing light and warmth to the Earth.
A fusion reaction is also known as a thermonuclear reaction because it occurs at extremely high temperatures similar to those found at the core of stars.
The high temperatures produced by the explosion of a fission bomb are necessary for initiating the fusion reaction in a thermonuclear device because fusion reactions require extremely high temperatures and pressures to overcome the repulsive forces between positively charged nuclei. The fission explosion provides the energy needed to achieve these conditions, thereby allowing the fusion reaction to take place.
A fission reaction is not necessary for a fusion reaction. Fission reactions involve breaking apart heavy atomic nuclei, which releases energy. Fusion reactions involve combining light atomic nuclei, also releasing energy, but under different conditions. One does not require the other to occur.
At the core of our sun, Helium is created by the thermonuclear fusion of Hydrogen.
thermonuclear fusion
Nuclear reactions initiated by, and/or depending on heat. As a generic term, thermonuclear is an adjective describing atomic processes involving heat. This definition is necessarily vague, so in practical terms, the word thermonuclear applies specifically to weapons and power generation. Thermonuclear weapons use the heat generated in an initial nuclear fission reaction to cause a chain reaction of further fission and fusion reactions, releasing energy. Thermonuclear fusion is the proposed method for achieving nuclear fusion for power generation. The very high temperature, combined with some form of containment, causes the atomic nuclei to fuse together, releasing energy. Nuclear fusion requires a minimum level of kinetic energy in each collision before the electrostatic repulsion of nuclei is overcome, permitting them to fuse.