Chapter 32, Problem 36PE

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

Chapter
Section

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
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,

â€ƒâ€ƒ4H1â†’H4e+3Î³+2e++2Ï…e

Positrons annihilate electrons to form Î³ rays then the overall equation will become,

â€ƒâ€ƒ2eâˆ’+4H1

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