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

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

Correct Answer:

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