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TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules ( 1 gigacalorie ), [ 1 ] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT .
Energy densities table Storage type Specific energy (MJ/kg) Energy density (MJ/L) Peak recovery efficiency % Practical recovery efficiency % Arbitrary Antimatter: 89,875,517,874: depends on density: Deuterium–tritium fusion: 576,000,000 [1] Uranium-235 fissile isotope: 144,000,000 [1] 1,500,000,000
The energy density of TNT is used as a reference point for many other explosives, including nuclear weapons, as their energy content is measured in equivalent tonnes (metric tons, t) of TNT. The energy used by NIST to define the equivalent is 4.184 GJ /t.
21 500 kilotons of TNT-equivalent energy (≈ 21 Mt) [note 4] 2 630 000 000 litres or 695 000 000 US gallons of automotive gasoline; Any time energy is released, the process can be evaluated from an E = mc 2 perspective. For instance, the "gadget"-style bomb used in the Trinity test and the bombing of Nagasaki had an explosive yield equivalent ...
The specific energy of an object such as a meteoroid falling on the Earth from outside the Earth's gravitational well is at least one half the square of the escape velocity of 11.2 km/s. This comes to 63 MJ/kg (15 kcal/g, or 15 tonnes TNT equivalent per tonne).
Specific energy: ktonTNT/MT ~kiloton of TNT per metric ton: 4,184,000,000: kiloton of TNT per metric ton: kilotons of TNT per metric ton: GJ/kg: TNT equivalent: ktTNT/t ~kilotonne of TNT per tonne: 4,184,000,000: kilotonne of TNT per tonne: kilotonnes of TNT per tonne: GJ/kg: TNT equivalent: MtonTNT/MT ~megaton of TNT per metric ton: 4.184e12 ...
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List of orders of magnitude for energy; Factor (joules) SI prefix Value Item 10 −34: 6.626 × 10 −34 J: Energy of a photon with a frequency of 1 hertz. [1]8 × 10 −34 J: Average kinetic energy of translational motion of a molecule at the lowest temperature reached (38 picokelvin [2] as of 2021)