Problem: Given that 0.1 percent of the mass of a sample of fissionable material is converted to energy upon nuclear fission. Estimate the amount of energy released upon the fission of 5 kg of Pu-239. A. 4.5 × 1011 kJB. 4.5 × 1014 kJC. 1.5 × 104 kJD. 1.5 × 107 kJ

FREE Expert Solution

We’re being asked to estimate the amount of energy released upon the fission of 5 kg of Pu-239.


We can calculate the energy using the following steps:

Step 1: Calculate the mass of fissionable material in kg.
Step 2: Calculate the energy using the following equation:

E=mc2

E = energy, in J ( J = kg•m2/s2)
m = mass, in kg
c = speed of light, 3.00x108 m/s


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Problem Details

Given that 0.1 percent of the mass of a sample of fissionable material is converted to energy upon nuclear fission. Estimate the amount of energy released upon the fission of 5 kg of Pu-239.

A. 4.5 × 1011 kJ

B. 4.5 × 1014 kJ

C. 1.5 × 104 kJ

D. 1.5 × 107 kJ

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mass Defect concept. If you need more Mass Defect practice, you can also practice Mass Defect practice problems.