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Now we have to take into account that the Uranium has been enriched from 0.711% U-235 to 4% U-235. So we actually need 7.31Kg of natural uranium to produce this3. So the energy density of natural uranium is 83,140,000/7.31 = 709,166 MJ/Kg.

## What is the energy density of uranium-235?

Energy density Extended Reference Table

Storage type | Specific energy (MJ/kg) | Energy density (MJ/L) |
---|---|---|

Uranium-235 fissile isotope | 144,000,000 | 1,500,000,000 |

Natural uranium (99.3% U-238, 0.7% U-235) in fast breeder reactor | 86,000,000 | |

Reactor-grade uranium (3.5% U-235) in light-water reactor | 3,456,000 | |

Pu-238 α-decay | 2,200,000 |

## How do you calculate the specific energy of uranium-235?

So, the plan is to find the number of moles in one kilogram of uranium, then to multiply the number of moles with Avogadro’s constant to get the number of uranium atoms, which is the same as the number of nuclei, finally, multiply the number of nuclei by the energy produced by each nucleus to get the specific energy.

## How do you find energy density?

To find a food’s energy density, divide the number of calories in a serving by the number of grams in that serving. Energy density ranges in the very low category are from 0.5 to 1 calorie/gram. As you move to the high end, it’s from 4 to 9 calories per gram. You can easily calculate the energy density of any food.

## How much energy does 1kg of U-235 produce?

One kilogram of uranium-235 can theoretically produce about 20 terajoules of energy (2×10^{13} joules), assuming complete fission; as much energy as 1.5 million kilograms (1,500 tonnes) of coal.

## Is uranium energy dense?

So the energy density of natural uranium is 83,140,000/7.31 = 709,166 MJ/Kg.

## What is the density of uranium in kg m3?

Density of Uranium

Bibliographic Entry | Result (w/surrounding text) | Standardized Result |
---|---|---|

Demmin, Peter E., Henry Dorin, and Dorothy L. Gabel. Chemistry: The Study of Matter. Needham, Massachusetts: Prentice Hall, 1992: 82. | “At 20 °C, the density of uranium is 18.9 g/cm^{3}.” |
18,900 kg/m^{3} |

## What is the mass of uranium-235 in KG?

Properties of Uranium-235

Atomic Number: The atomic number for this metal is 92. Atomic Mass: Its mass number is 235.0439299 u (unified atomic mass units). Critical Mass: The critical mass for this radioactive isotope is 52 kg.

## What is the atomic number of uranium-235?

Fact box

Group | Actinides | 1135°C, 2075°F, 1408 K |
---|---|---|

Period | 7 | 4131°C, 7468°F, 4404 K |

Block | f | 19.1 |

Atomic number | 92 | 238.029 |

State at 20°C | Solid | ^{234}U, ^{235}U, ^{238}U |

## How do you calculate the mass defect of uranium-235?

The mass defect is calculated in unified atomic mass units (u), which can be converted to kilograms using the conversion factor: 1 u = 1.6605 x 10-27 kg.

## How is caloric density calculated?

Calculating calorie density (also known as energy density) is easy once you learn to read food labels. Take the number of calories per serving and divide it by the weight of the serving, often listed in the “serving size” as a measure in grams.

## How do you find energy density from specific capacity?

The energy density of a battery can be simply calculated using this formula: Nominal Battery Voltage (V) x Rated Battery Capacity (Ah) / Battery Weight (kg) = Specific Energy or Energy Density (Wh / kg).

## How do you find energy density from number density?

We can estimate the number density by starting with the energy density of radiation (section 2 above) and dividing by the average energy per photon: where l _{max} = 1 cm is the wavelength of maximum intensity of the CMB radiation and T (= 2.7K) is the present temperature of the CMB.