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Thermonuclear fusion of hydrogen occurs during the red giant phase. Helium to carbon fusion, or dredge up, also occurs at this time.

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Red giant is a luminous giant star of low or intermediate mass that is in a late phase of its evolution with nuclear fusion going on in a shell outside the core but not in the core itself?

Thermonuclear fusion is still going on in the core of a red giant, but it is a different type of thermonuclear fusion. The center of the core has reached high enough temperature and pressure that it can now burn helium, producing carbon. 3 4He --> 12C The large amount of energy released by this type of fusion pushes the outer layers away, making a giant star. The expansion of volume of the surface layer causes it to cool, appearing red. Thus a red giant.


What type of star would helium be converted to carbon as the final stage of fusion?

Helium is converted into carbon during the final stage of fusion in a star called a red giant. This process occurs when helium fusion in the core of the star gives rise to carbon as the result of nuclear reactions.


What type of eclipse occurs when the moon is in its full moon phase?

A Lunar eclipse occurs only when the moon is in its full moon phase.


What type of reaction occurs when a thermonuclear bomb explodes?

A fusion reaction.


What type of star is a Enif?

It is a star that has entered the super-giant phase. Its stellar classification is K2 1b.


What type of star would helium be converted to carbon as the final stage or fusion?

Helium fuses into carbon as the final stage in the life cycle of intermediate-mass stars, typically those with a mass between 0.8 to 8 times that of the Sun. This process occurs during the core helium burning phase when the star has exhausted its hydrogen fuel and evolved off the main sequence.


What type of fusion occurs in a high-mass star near the end stages of its life cycle?

helium capture


The helium flash occurs at what stage in stellar evolution?

As a G-type star fuses its hydrogen to helium, this helium will gather in the core. As a result, the core will contract under its own weight as hydrogen is being spent. The contraction causes an increased hydrogen fusion rate, increasing the temperature. When insufficient hydrogen remains in the core, the layers above are no longer supported by the outward pressure of radiation, and collapse on top of the core, causing it to contract further, and also initiating hydrogen fusion outside the core. At this point, the star leaves the main sequence, and becomes a red giant. At this stage, the core of the giant may reach critical density for helium fusion to initiate. Since the core is composed of mostly degenerate matter at this stage, there is no regulation of the fusion rate. Also, degenerate matter is less opaque to the energies produced than non-degenerate matter, so conducts them better.Ehr, to summarize: the helium flash occurs during the red giant stage of G-type stars.


After consuming the hydrogen in its core the sun will begin its helium fusion stage swelling until it becomes what type of star?

The sun will swell into a red giant star during its helium fusion stage. This stage occurs when the core contracts and heats up, causing the outer layers to expand and cool, giving the star its red appearance.


What type of phase change occurs when a liquid changes into solid?

This physical change is called freezing.


What is evoaporation?

Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance. The other type of vaporization is boiling, which is characterized by bubbles of saturated vapor forming in the liquid phase.


What phase change occurs as the temperature of the sample at 3 ATM is raised from -90ºC to -50ºC?

This depends on the type of sample.