What total energy is released when 0.75 grams of ²³⁵U undergo fission if each atom averages 3.2 × 10^-11 J of energy released?

Question

Quizplus · Accepted Answer

First, we need to calculate the total number of atoms in 0.75 grams of ²³⁵U. The molar mass of ²³⁵U is approximately 235 grams/mol. This means that there are 0.75/235 = 0.00319 moles of ²³⁵U. Next, we can use Avogadro's number (6.02 × 10^23) to calculate the number of atoms: 0.00319 moles × 6.02 × 10^23 atoms/mole = 1.92 × 10^21 atoms Finally, we can multiply the total number of atoms by the energy released per atom: 1.92 × 10^21 atoms × 3.2 × 10^-11 J/atom = 6.14 × 10^10 J Therefore, the total energy released is 6.15 × 10^10 J, which is closest to choice C.

What Total Energy Is Released When 0