   Chapter 32, Problem 36PE

Chapter
Section
Textbook Problem

Another set of reactions that result in the fusing of hydrogen into helium in the Sun and especially in hotter stars is called the carbon cycle. It is 12 C + 1 H → 13 N+ γ , 13 N → 13 C + e + + v e , 13 C + 1 H → 14 N + γ , 14 N + 1 H → 15 O + γ , 15 O                             → 15 N + e + + v e , 15 N + 1 H → 12 C + 4 He .Write down the overall effect at the carbon cycle (as was done for the proton−proton cycle in 2 e − + 4 1 H + 4 He + 2 v e + 6 γ . Note the number of protons (lH) required and assume that the positrons (e+) annihilate electrons to form more (rays.

To determine

The overall effect of the carbon cycle

C12+H1N13+γN13C13+e++υeC13+H1N14+γN14+H1O15+γO15N15+e++υeN15+H1C12+H4e

Note the number of protons ( H1 ) required and assume that the positrons ( e+ ) annihilate electrons to form more γ rays?

Explanation

Adding all the equations we will get,

4H1H4e+3γ+2e++2υe

Positrons annihilate electrons to form γ rays then the overall equation will become,

2e+4H1

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