Demonstrate that, for any known chemical reaction, the Sun's lifetime would be several orders of magnitude...

Demonstrate that, for any known chemical reaction, the Sun's lifetime would be several orders of magnitude smaller than in the case of thermal energy emission (Kelvin-elmholtz time) if such a reaction was responsible for solar luminosity.

Solutions

Expert Solution

Answer:

Kelvin-Helmholtz time (or lifetime of Sun) = Gravitational Potential Energy of Sun/Luminosity of Sun

or, Lifetime of Sun = (GM/R²)/3.8 X 10²⁶ = 3 X 10⁷ Years

genius_generous answered 1 year ago

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