The average power output of a nuclear power plant is 5.00× 10 2 MW. In one minut

Question

The average power output of a nuclear power plant is 5.00× 102 MW. In one minute, what is the change in themass of the nuclear fuel due to the energy being taken from thereactor? Assume 100% efficiency.

b. 3.3 ×10–13 kg
c. 3.3 ×10–7 kg
d. 9.3 kg
e. 9.3 × 10–17 kg The average power output of a nuclear power plant is 5.00× 102 MW. In one minute, what is the change in themass of the nuclear fuel due to the energy being taken from thereactor? Assume 100% efficiency. 3.3 ×10–13 kg 3.3 ×10–7 kg 9.3 kg 9.3 × 10–17 kg

Explanation / Answer

The energy is         E = Pt            =(500*106 W)(60s)            = 30000000000 J We know that           E =mc2 The mass of the nuclear fuel is          m =E/c2 On substitution             = 3.3 × 10–7 kg On substitution             = 3.3 × 10–7 kg

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