Question

If an element is used up by a star in fusion, it is often referred to as "burning" even though actual combustion occurs. Which of the following process is likely to involve "carbon burning"?

A. alpha ladder
B. triple alpha process
C. CNO cycle
D. r-process​

Answer 1

Answer:

A

Explanation:

Answer 2

Answer:

The r-process is linked to the burning of carbon. Option D. is correct.

Explanation:

• The process of burning carbon is a collection of nuclear fusion that occurs in the cores of large stars that combine carbon into other elements.
• Large densities and temperatures are the must requirements.

Elements formed by a slow process are close to the $\beta$ stability line, while the fast-moving neutron sequence passes the excess nuclei of the neutron, which eventually decomposes back into the nonstable line, sometimes producing elements that can be synthesized by the s-process. The fastest process is called the r-process.

So, option D. is correct.