Specific Energy Generation of the sun.

For the human, divide his luminosity by his weight to get W/kg.In summary, the specific energy generation rate of the Sun is the total luminosity divided by the total mass. For a human with a weight of 100 kg and a luminosity of 100 W, the specific energy generation rate would be 1 W/kg.
  • #1
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Homework Statement


(a) Compute the specific energy generation rate of the Sun as a whole.

(b) Assume a human of weight 100 kg has a “luminosity” of 100 W.
Compute the specific energy generation rate of a this human.

Homework Equations


Need help with the equations part.

The Attempt at a Solution


My first instinct was that the energy generation would just be the luminosity of the Sun, but this is a slightly more advanced astrophysics course in which I think they would be looking for something more. Does "specific energy generation rate" mean something more then just the rate it generates energy? Is there some equation I should have to solve these questions?

Thanks for the help!
 
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  • #2
Judging from the part (b), I'd guess that the specific energy generation means "Power generated per unit mass". So just take Sun's total luminosity and divide by it's total mass.
 

FAQ: Specific Energy Generation of the sun.

What is specific energy generation of the sun?

The specific energy generation of the sun refers to the amount of energy produced by the sun per unit of mass. It is a measure of the sun's overall energy output and is typically expressed in joules per kilogram (J/kg).

How is the specific energy generation of the sun calculated?

The specific energy generation of the sun is calculated by dividing the total energy output of the sun by its mass. This can be determined using various methods, such as measuring the sun's luminosity or analyzing the nuclear reactions happening in the sun's core.

What factors affect the specific energy generation of the sun?

The specific energy generation of the sun is primarily influenced by its mass and composition. The more massive a star is, the higher its specific energy generation will be. Additionally, the type and amount of elements present in the sun, such as hydrogen and helium, also play a role in its energy production.

How does the specific energy generation of the sun compare to other stars?

The specific energy generation of the sun is relatively low compared to other stars in the universe. This is because the sun is a relatively small and average star, with a mass and composition that allows for stable and sustained energy production over a long period of time. Larger stars, on the other hand, may have much higher specific energy generation but also have shorter lifespans.

Can the specific energy generation of the sun change over time?

Yes, the specific energy generation of the sun can change over time. As the sun ages, it undergoes changes in its structure and composition, which can affect its energy production. For example, as the sun fuses hydrogen into helium, its core becomes denser and hotter, resulting in a higher specific energy generation. However, these changes occur over billions of years and are not significant on a human timescale.

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