What Is The Net Result Of The Proton Proton Chain?
The net effect is to convert hydrogen to helium with the energy released going into the particles and gamma-rays produced at each step of the sequence.
Which is the final result of the proton-proton chain quizlet?
The net result of the proton-proton chain in the Sun is to convert: four protons to one helium-4 nucleus two neutrinos two positrons and gamma rays.
What does the proton-proton cycle produce?
noun Physics Astronomy. a series of thermonuclear reactions responsible for the energy production in stars like the sun in which the nuclei of hydrogen atoms are transformed into helium nuclei by sequential addition of single hydrogen nuclei.
What is released during the first step of the proton-proton chain?
The first step involves the fusion of two hydrogen nuclei 1H (protons) into deuterium 2H releasing a positron and a neutrino as one proton changes into a neutron. with the neutrinos released in this step carrying energies up to 0.42 MeV.
What is the proton-proton chain quizlet?
What is the proton-proton chain? … The proton-proton chain takes the similar hydrogen nuclei and fuses them together to form the larger helium nucleus. Nuclear fission takes a larger nucleus and splits it into smaller nuclei.
What is the significance of the proton-proton cycle and the CNO cycle?
The proton-proton chain and the CNO cycle both convert four hydrogen nuclei into one helium nucleus releasing energy. The CNO cycle is different from the proton-proton chain because it requires carbon to be present to act as a catalyst.
What happens to the neutrinos that are produced in the proton-proton chain quizlet?
What happens to the neutrinos that are produced in the proton-proton chain? They head out of the sun at nearly the speed of light. … What solved the solar neutrino problem? The discovery that neutrinos oscillate between three different types.
What does the proton chain do?
proton-proton chain also called p-p chain proton-proton cycle or proton-proton reaction chain of thermonuclear reactions that is the chief source of the energy radiated by the Sun and other cool main-sequence stars.
What is the proton-proton chain reaction and how does it relate to the energy production of the sun?
photons In the proton-proton chain reaction hydrogen nuclei are converted to helium nuclei through a number of intermediates. The reactions produce high-energy photons (gamma rays) that move through the “radiative layer” surrounding the core. This layer takes up 60 percent of the radius of the Sun.
How many protons are involved in the proton chain?
This process dominates in stars where the core temperature is less than 15 000 000 K (such as our sun). It consists of three reactions that result in the conversion of six protons into a He nucleus plus two residual protons.
What is the net fusion reaction that produces energy in the core of the Sun?
What are the 3 steps of the proton-proton chain?
- 1 helium nucleus.
- 1 positron (this positron will bump into a electron and annihilate creating a gamma ray – energy!).
- 1 gamma ray (energy!)
- 1 neutrino.
How is energy released in the proton-proton chain?
The proton-proton chain is a nuclear fusion reaction meaning it releases energy as the energy in the nuclear bonds decreases.
Why does the proton-proton chain require a high temperature quizlet?
Why does the proton-proton chain require a high temperature? Protons have a positive charge so they repel each other.
What have studies of Sunquakes or Helioseismology revealed?
magnetic fields trap ionized gases that absorb light. … strong magnetic fields slow convection and prevent hot plasma from entering the region. Studies of sunquakes or helioseismology have revealed that. neutrinos from the solar core reach the solar surface easily.
What is the CNO cycle astronomy quizlet?
The CNO cycle is a nuclear fusion cycle involving carbon nitrogen and oxygen. It is a more ecient way of fusing hydrogen into helium and is used by stars more massive than our Sun.
What is the net result of the CNO cycle?
The end result of the CNO cycle is that four hydrogen nuclei become one helium nucleus. When iron fuses into heavier elements it produces energy. Electrons and protons can combine to become neutrons.
How much energy does the CNO cycle release?
How does the CNO cycle differ from the proton-proton chain quizlet?
The CNO cycle produces a helium nucleus whereas the proton-proton chain does not. The CNO cycle produces energy whereas the proton-proton chain does not. The CNO cycle uses a carbon nucleus as a catalyst for the reaction whereas the proton-proton chain does not. The CNO cycle requires higher temperatures.
What solved the solar neutrino problem?
In 2002 results from the Sudbury Neutrino Observatory nearly 2 100 metres (6 900 feet) underground in the Creighton nickel mine near Sudbury Ont. showed that the solar neutrinos did change their type and thus that the neutrino had a small mass. These results solved the solar neutrino problem.
How did neutrino oscillation affect the detection of solar neutrinos by the Davis experiment quizlet?
How did neutrino oscillation affect the detection of solar neutrinos by the Davis experiment? Davis’s experiment collected approximately twice as many neutrinos as expected. Davis’s experiment collected approximately three times as many neutrinos as expected.
What are the byproducts of the proton proton chain?
What is the proton-proton chain reaction describe this process Brainly?
The proton–proton chain reaction also commonly referred to as the p-pchain is one of two known sets ofnuclear fusion reactions by which stars convert hydrogen to helium. …
What are the ingredients and the end result of the proton-proton chain Why is energy released in the process?
What are the ingredients and the end result of the proton-proton chain? Why is energy released in the process? 6 Hydrogen atoms and comes out is Helium nucleus two neutrinos two positrons — gamma rays. What are observations of solar neutrinos important to both astronomers and physicists?
What is stellar proton-proton chain reaction?
What is the net change that occurs during the fusion process in the Sun?
What is the net change that occurs during the fusion process in the Sun? Four hydrogen nuclei join to form a helium nucleus two neutrinos and energy. How is mass-energy equivalence demonstrated in the Sun? Hydrogen nuclei fuse to form a larger nucleus and a small amount of mass is converted into energy.
What is the overall nuclear fusion reaction in the Sun briefly describe the proton-proton chain?
Energy in the Sun is created by nuclear fusion. Four hydrogen nuclei are fused to form one helium nucleus via a series of reactions called the proton-proton chain. The energy comes from the mass difference between the higher mass of the four hydrogen nuclei and the lower mass of the single helium nucleus.
Why does the proton-proton chain require a high temperature?
Each reaction requires that the strong electrostatic repulsion of the protons be overcome. This requires high temperatures (so that the nuclei are moving rapidly) and high densities (so the nuclei are close together).
How many nuclear reactions occur in a proton proton chain quizlet?
Instead of waiting for 4 hydrogen nuclei to collide simultaneously a highly unlikely event the process normally proceeds step-by-step in a series of reactions called the proton-proton chain. The chain consists of 3 nuclear reactions that build a helium nucleus by adding protons one at a time.
Where does the proton proton chain take place in the Sun?
core
Inside the Sun this process begins with protons (which is simply a lone hydrogen nucleus) and through a series of steps these protons fuse together and are turned into helium. This fusion process occurs inside the core of the Sun and the transformation results in a release of energy that keeps the sun hot.Jun 16 2020
What is the meaning of CNO cycle?
What is the net fusion reaction that produces energy in the core of the sun quizlet?
In the core of the Sun hydrogen is being converted into helium. This is called nuclear fusion. It takes four hydrogen atoms to fuse into each helium atom. During the process some of the mass is converted into energy.
How is fusion energy calculated?
Where does the Sun’s energy come from?
The sun generates energy from a process called nuclear fusion. During nuclear fusion the high pressure and temperature in the sun’s core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom.
proton proton chain
Astronomy – The Sun (5.5 of 16) What is the Proton-Proton Chain?
Nucleosynthesis: The Proton-Proton Chain
Proton-proton chain