Each Kilogram of Hydrogen That Fuses into Helium Releases About

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_SUN? (Note that 1 L_SUN = 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