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A star that expands is running low on fuel, and is entering its end-of-life sequence. Its not due to fusion - all stars use fusion.

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As heavier elements are formed by fusion a massive star expands into a what?

A super giant


When the core of a star shrinks after hydrogen fusion stops the core heats up but what happens to the star?

The rest of the star expands.


Which star expands due to fusion?

As a star ages and runs out of fuel in its core, it can expand in size as it transitions into a red giant. During this phase, fusion reactions occur in the outer layers of the star, causing it to expand and cool. This expansion happens when the star exhausts its hydrogen fuel and begins fusing helium in its core.


As a star expands to a red giant what force increases?

As a star expands into a red giant, the force of gravity increases in its core due to the increasing mass from the outer layers collapsing inward. This gravitational force causes the core to compress and heat up, leading to the fusion of helium and heavier elements. The balance between gravitational force and the pressure from nuclear fusion is crucial in determining the star's evolution during this phase.


What happens when heavier elements are formed by fusion then a massive star expands?

yes as heavy elements are used for fuel the star expands this is what will happen to the earth it will swell to a red giant engulfing the inner 3 planets as it slowly dies


As heavier elements are formed by fusion a massive star expands into?

As heavier elements are formed by fusion in the core, a massive star will eventually exhaust its nuclear fuel and trigger a supernova explosion. This explosion will generate immense energy, leading to the production and dispersal of even more heavy elements into space.


Is a red giant a main sequence star?

No, a red giant is a star that has just left the hydrogen burning main sequence and begun the next step, burning helium. As helium undergoes fusion at a much higher temperature than hydrogen undergoes fusion, the star expands dramatically and as it expands its outer layers cool to red heat.


When heavier elements form by fussion a massive star expands into a what?

When heavier elements form by fusion, a massive star expands into a red supergiant. This is a stage of stellar evolution where the star increases in size and becomes much more luminous.


What creates the heat and light in a star?

Nuclear fusion, in the star's core.Nuclear fusion, in the star's core.Nuclear fusion, in the star's core.Nuclear fusion, in the star's core.


The onset of iron fusion causes a star to become a?

The onset of iron fusion causes a star to become a supernova. This process occurs when the star's core collapses due to the inability to support the fusion of iron, leading to a catastrophic explosion.


What is the temperature of an expanding star?

The temperature of an expanding star can vary depending on its size and stage of evolution. Generally, as a star expands, its surface temperature decreases due to the increased surface area over which the energy is distributed. However, the core temperature of the star can increase as it undergoes fusion reactions.


What does the outward and inward forces on a star have to do with its size?

The outward forces on a star, primarily generated by nuclear fusion in its core, counterbalance the inward gravitational forces trying to collapse the star. The balance between these forces determines the star's size and stability; if the outward pressure increases (e.g., from increased fusion due to higher core temperatures), the star expands. Conversely, if the inward gravitational force becomes stronger (e.g., from a depletion of nuclear fuel), the star contracts. Thus, the interplay of these forces is crucial in defining a star's size and evolutionary state.