Why is the nuclear fusion possible only at a very high temperature and very high pressure?
When two nuclei approach each other, due to their positive charge, the electrostatic force of repulsion becomes too strong between them that they do not fuse. Hence, at ordinary temperature and pressure nuclear fusion is not possible.
Does nuclear fusion need high pressure?
A: In order for the fusion reaction to take place, the constituent nuclei of the fuel (isotopes of hydrogen) must be very hot, and they must collide with each other frequently enough. Fusion thus requires high temperature and density simultaneously, which when multiplied together is defined as pressure.
Why does nuclear fusion only occur at high temperatures?
It takes place only at extremely high temperatures. That's because a great deal of energy is needed to overcome the force of repulsion between the positively charged nuclei.
Why does a fusion reaction take place at high temperature?
Solution : (b) Fusion reaction takes place at high temperature because kinetic energy is high enough to overcome the coulomb repulsion between nuclei.
Why are very high temperatures and pressures required for fusion to occur quizlet?
Why does nuclear fusion require high temperatures and pressures ? To bond together, two nuclei must be thrown together with great force. This is because every nucleus has a positive charge and the nuclei repel each other when they come close.
Why does nuclear fusion require high temperatures quizlet?
Why Does Nuclear Fusion Require High Temperatures? The high temperature gives the atoms enough energy to press forward even when they are being pushed back by the protons. Without the high temperature fusion would not be able to take place.
Does fusion have to take place at high temperature?
On Earth, to produce net power, fusion reactions must take place at very high temperatures of at least 100 million degrees, which is some seven times hotter than the centre of the Sun. At these very high temperatures the fusion fuel turns into a plasma.
Why can fusion occur at lower temperatures?
7.26 explain why nuclear fusion does not happen at low temperatures and pressures, due to electrostatic repulsion of protons. For nuclear fusion to occur, very high temperatures are required to overcome the repulsive force between the positively charged nuclei of each isotope.
Why does fusion require such high temperatures?
First, fusion requires both extremely high temperatures to give hydrogen atoms enough energy to overcome repulsion between the protons. Energy from microwaves or lasers must be used to heat hydrogen atoms to the necessary temperatures.
Why does nuclear fusion require high temperatures and high density quizlet?
Why does nuclear fusion require high temperatures and pressures ? To bond together, two nuclei must be thrown together with great force. This is because every nucleus has a positive charge and the nuclei repel each other when they come close.
Why is high temperature required for fusion?
First, fusion requires both extremely high temperatures to give hydrogen atoms enough energy to overcome repulsion between the protons. Energy from microwaves or lasers must be used to heat hydrogen atoms to the necessary temperatures.
Why does fusion only happen at very high temperatures?
It takes place only at extremely high temperatures. That's because a great deal of energy is needed to overcome the force of repulsion between the positively charged nuclei. The sun's energy comes from fusion in its core, shown in the Figure below. In the core, temperatures reach millions of degrees Kelvin.
Why are very high temperatures and pressures required?
A high pressure helps because it causes all the hydrogen nuclei in the sun to squeeze into a smaller space. Then there is more chance of one hydrogen bumping into another. A high temperature helps because it makes the hydrogen nuclei move faster. They need this extra speed so that they can get close together and join.