The critical temperature for nucleosynthesis to begin was the:
A)triple alpha reaction at 100 million K.
B)deuterium bottleneck at about 900 million K.
C)proton-proton cycle at 10 million K.
D)iron production at 10 billion K.
E)formation of lithium at 50 million K.

Question

Quizplus · Accepted Answer

The critical temperature for nucleosynthesis to begin was the deuterium bottleneck at about 900 million K. At this temperature, the strong nuclear force can overcome the repulsive electrostatic force between protons to create deuterium, which then allows for the formation of heavier elements through fusion reactions. The critical temperature for nucleosynthesis to begin was the deuterium bottleneck at about 900 million K. This is when protons and neutrons combine to form deuterium, which is a necessary step for the formation of heavier elements.

The Critical Temperature for Nucleosynthesis to Begin Was The