Each Kilogram of Hydrogen That Fuses into Helium Releases About $\odot$

question 54

Multiple Choice

Each kilogram of hydrogen that fuses into helium releases about 6*10¹⁴ Joules of energy. How many tons of hydrogen are fused each second to power a massive main-sequence star with a luminosity of 100 L _$\odot$ ? Note that 1 L _$\odot$ = 4 * 10²⁶ Joule/second and 1 ton = 10³ kg.

• A) 2 * 10⁶ tons
• B) 7* 10⁷ tons
• C) 2 *10⁹ tons
• D) 7 *10¹⁰ tons
• E) 2 * 10¹¹ tons

---

Definitions:

Glomerulus

A group of capillaries in the renal corpuscle.

Renal Corpuscle

Corpuscle that is composed of the glomerulus and the glomerular capsule. The filtration of blood occurs here.

Capillaries

The smallest blood vessels in the body's circulatory system, responsible for the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste substances between blood and tissue cells.

Retroperitoneal

An anatomical term that means behind the peritoneal cavity. It is where the kidneys lie.