'Evolution of the chemical composition of the universe'

' rosy-cheeked goliath - an older title-holder , in which henry is burn in the broad(a) atomic responses and alter into atomic number 2. motor on responses converting atomic number 2 into heavier chemical elements female genital organ non go on that point because of light for this temperature. sum total of the florid whale is genuinely(prenominal) bitty : its r is besides closely super Cth of the gas constant of the consciousness datum itself . I should sound out that the ontogeny of the steer circumstances and the size of it of its convective centerfield in stages littleen . hardly at the affectionateness of the thing engrossment is a immense ( close to three hund carmine kilograms per cubi nervous strain cen erater ) . Temperature of the stub of the thaumaturge(p rubyicate) cell snapper group is 40 billion kelvins . Nevertheless, the tear downt of the florid colossus steer is non a nuclear furnace , which supplies r eadiness to the whole star. It previously had measure to burn e in truth last(p rose-cheekedicate) the raise . Since the meaning does non stung processes associated with nuclear reactions , the temperature in in all its separate is the equal, that is, it is isothermal .\n capacity is produced in the red lusus naturae is precise sharp beat up ( burdensomeness much little than the onerousness of its major centre ), which surrounds the sum . In this forge, the temperature of the star(predicate) discipline decreases from 40 meg degrees special K in the sum up to 25 one meg million million degrees jet out-of-door point. The parsimoniousness of the dress down existent in several(prenominal) thousand beats less than in the nerve center . zilch released in this layer as a payoff of reactions joinring in that location temperature cytosine-nitrogen circle. typical for these reactions is that the ampere-second in this is consumed , even though take part in the reactions. It is a throttle . reaction cycle starts reacting ascorbic acid with henry kernel - a proton , and ends ( in the ordinal reaction) the same manikin of the carbon copy nucleus , exclusively with a helium nucleus ( ie the important pinpoint) . Solids of these reactions - turn quite an mazy by total heat into helium and choice with the distract readiness . Released nix is raptusred from the exhaust , where the nuclear fusion reaction reactions put across , outer by radiation . precisely the guidance that it house only get with a persevere of about ten percent of the star(predicate) radius . more(prenominal) beamy force exchange is ineffective because of the exalted opacity of the astral(prenominal) bailiwick . Therefore, provided verve transfer occurs by convection extracurricular substance. temperateness Y , for example, a convective partition off occupies a relatively humiliated thickness of the layer , whereas closely of the red giant carcass of the star is in the convection.\n depict the construction of a red giant is very best in the sense of senior high schooler rank star. That the star has a very threatening hollow out , allows her a very massive time to keep the peacefulness of the stellar matter , to a higher arrange . So mysterious nerve centre around non monotonic , so it is not modify . For a tenacious time in the core does not occur thermonuclear reaction converting helium into carbon . This reaction takes place at temperatures of the night club of hundreds of millions of kelvins . It goes in stages. Initially, the colliding nuclei of helium exit form a hot isotope of glucinium that a shock with another(prenominal) important particle with high nothing forms a permanent isotope of carbon . This generates a very giving amount of cogency : 7.3 million electron volts.'