Question

What temperautre is necesasry for the helium flash to occur?

Answer 1

The temperature necessary for the helium flash to occur is around 100 million K. During this process, three helium nuclei collide simultaneously to form a stable nuclear structure and produce a carbon nucleus.

Step-by-step explanation:

The temperature necessary for the helium flash to occur is around 100 million K. During this process, three helium nuclei collide simultaneously to form a stable nuclear structure and produce a carbon nucleus. This high temperature allows for the fusion of helium nuclei despite the repulsion between the positive protons in each nucleus.

Answer 2

The answer is 100 million K.
The helium flash happens in the hydrogen-exhausted core of a star that has become a red giant. When gravitational pressure has raised the temperature of the dormant helium core to a temperature of about 100 million K, the helium nuclei start to undergo a thermonuclear reactions.