#### Question

A uranium reactor develops thermal energy at a rate of 300 MW. Calculate the amount of ^{235}U being consumed every second. Average released per fission is 200 MeV.

#### Solution

Given:

Rate of development of thermal energy = 300 MW

Average energy released per fission = 200 MeV

Let N be the number of atoms disintegrating per second.

Then, the total energy emitted per second will be

`N xx 200 xx 10^6 xx 1.6 xx 10^-19` = Power

`N xx 200 xx 10^6 xx 1.6 xx 10^-19 = 300 xx 10^6` atoms

⇒ `N = 3/(2 xx 1.6) xx 10^19 = 3/3.2 xx 10^19` atoms

6.023 × 10^{23} atoms = 238 gm of U^{235}

`3/3.2 xx 10^19` atoms will present in `(238 xx 3 xx 10^19)/(6 xx 10^23 xx 3.2) = 3.7` mg

Is there an error in this question or solution?

Solution A Uranium Reactor Develops Thermal Energy at a Rate of 300 Mw. Calculate the Amount of 235u Being Consumed Every Second. Average Released per Fission is 200 Mev. Concept: Nuclear Energy - Fission.