As stars age, they use up their supply of hydrogen and eventually begin producing energy by a

Question:

As stars age, they use up their supply of hydrogen and eventually begin producing energy by a reaction that involves the fusion of three helium nuclei to form a carbon nucleus. Would you expect the interiors of these old stars to be hotter or cooler than the interiors of younger stars? Explain.

Fantastic news! We've Found the answer you've been seeking!