WebHelium has a very low viscosity, a high diffusion coefficient, and the smallest atom of any element. These characteristics make helium very hard to contain. If a system has a leak, … WebBelow about 1.2 M ☉, energy production in the stellar core is predominantly through the proton–proton chain reaction, a process requiring only hydrogen.For stars above this mass, the energy generation comes increasingly from the CNO cycle, a hydrogen fusion process that uses intermediary atoms of carbon, nitrogen, and oxygen.In the Sun, only 1.5% of …

Proton-proton chain Definition, Steps, & Facts Britannica

WebSolar corona. Flare. Prominence. Solar wind. The core of the Sun is considered to extend from the center to about 0.2 to 0.25 of solar radius (140,000–170,000 kilometres (87,000–106,000 mi)). [1] It is the hottest part of the Sun and of the Solar System. It has a density of 150 g/cm 3 at the center, and a temperature of 15 million kelvins ... http://large.stanford.edu/courses/2024/ph241/li-ji2/ how many cartoons did walt disney make

Proton–proton chain - Wikipedia

WebCNO Cycle described as an alternative path to the fusion of hydrogen into helium in hotter stars. WebThe proton-proton chain reaction is one of several fusion reactions by which stars convert hydrogen to helium, the primary alternative being the CNO cycle.The proton-proton chain dominates in stars the size of the Sun or smaller.. Overcoming electrostatic repulsion between two hydrogen nuclei requires a large amount of energy, and this reaction takes … WebStellar nucleosynthesis is the creation (nucleosynthesis) of chemical elements by nuclear fusion reactions within stars. Stellar nucleosynthesis … how many cartridges did brittney griner have