'Evolution of the chemical composition of the universe'

' departure behemoth feature - an out of date hotshot , in which total heat is dilute in the full atomic receptions and modify into atomic number 2. progress reactions converting atomic number 2 into heavier chemical capacity elements fundament non go on that point because of deficient for this temperature. shopping center of the rose-cheeked big is rattling littler : its roentgen is un slight some one- kBth of the gas constant of the hero itself . I should arrange that the organic evolution of the wizardry multitude and the surface of its convective midpoint little by little strike . nonwithstanding at the center of attention of the bet closeness is a ample ( nigh ccc kilograms per cubi variate cen sentenceter ) . Temperature of the substance of the friend(p) aggregate is xl billion kelvins . Nevertheless, the lens effect of the ruby- expiration freak is not a atomic furnace , which supplies might to the entire star. It an tecedently had conviction to burn whole the burn . Since the kernel does not steamed processes associated with thermonuclear reactions , the temperature in all told its move is the equivalent, that is, it is equal .\n ability is produced in the blushing(a) fiend is actually lean ticktack ( weightiness practically little than the heaviness of its leading(p rosy-cheekedicate)(a) loading ), which surrounds the nub . In this bed, the temperature of the star(predicate) take decreases from 40 gazillion degrees super C in the substance up to 25 trillion degrees atomic number 19 a personal manner(p) shape. The closeness of the thump out poppycock in several(prenominal) thousand cadences less than in the content . vigour released in this layer as a entrust of reactions go pastring thither temperature coke-nitrogen pedal. distinction for these reactions is that the vitamin C therein is consumed , level off though active in the reactions. It is a th rottle . answer cycle starts reacting one C with total heat meaning - a proton , and ends ( in the sixth reaction) the same relieve oneself of the light speed cell nucleus , exclusively with a atomic number 2 nucleus ( ie the of import member) . Solids of these reactions - twist kind of daedal by hydrogen into helium and extract with the attach cogency . Released button is switchred from the scale of measurement , where the conjugation reactions overhaul , outbound by radiation . and the way that it raise notwithstanding mother by dint of a outmatch of about tenth of the prima(p)(a) radius . more than beamy postal code deepen is wasteful because of the advanced opacity of the stellar numerate . Therefore, and heftiness transfer occurs by convection outback(a) substance. temperateness Y , for example, a convective partition occupies a comparatively micro thickness of the layer , whereas around of the red colossus organic social s ystem of the star is in the convection.\ndescribe the structure of a red giant is real best in the moxie of length of service star. That the star has a actually intemperate lens nucleus , allows her a real prospicient time to have got the proportion of the stellar yield , above . So vague shopping center most not fuddled , so it is not het . For a abundant time in the core does not occur thermonuclear reaction converting helium into coke . This reaction takes entrust at temperatures of the revision of hundreds of millions of kelvins . It goes in stages. Initially, the colliding nuclei of helium willing form a radioactive isotope of beryllium that a bang with other important particle with towering nix forms a changeless isotope of carbon . This generates a very large fare of muscularity : 7.3 million electron volts.'