q write short notes on proton - proton fusion in, Computer Engineering

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q write short notes on proton - proton fusion in

Q. Write short notes on proton - proton fusion in sun.

Proton - Proton cycle

₁H¹ + ₁H¹ → ₁H² + ₁e⁰ + ν (emission of positron as well as neutrino)

₁H¹+ ₁H²→₂He³ + γ (emission of the gamma rays)

2 ₂He³ → ₂He⁴ + 2 ₁H¹

The reaction cycle is written since

4 ₁H¹ → ₂He⁴+ 2 ₁e⁰ + 2ν + energy (26.7 MeV)

Therefore four protons fuse together to form an alpha particle and two Positrons with a release of large amount of energy.

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