Metals - Latent Heat of Fusion
Metals and their latent heat of fusion.
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The Latent Heat of Fusion is the heat supplied to a solid body at the melting point when it changes state from solid to liquid.
Latent heat of fusion for some metals are indicated below:
| Metal | Symbol | Atomic Weight (g/mol) | Latent Heat of Fusion | |
|---|---|---|---|---|
| (kJ/mol) | (kJ/kg) Load Calculator! Load Calculator! | |||
| Aluminum | Al | 27 | 10.7 | 396 |
| Antimony | Sb | 122 | 19.7 | 161 |
| Beryllium | Be | 9.1 | 7.95 | 1356 |
| Bismuth | Bi | 209 | 10.9 | 52.2 |
| Cadmium | Cd | 112 | 6.3 | 56 |
| Chromium | Cr | 52.0 | 20.5 | 394 |
| Cobalt | Co | 58.9 | 16.2 | 275 |
| Copper | Cu | 63.5 | 13.1 | 206 |
| Gold | Au | 197 | 12.5 | 63 |
| Iridium | Ir | 192 | 26 | 135 |
| Iron | Fe | 55.8 | 13.8 | 247 |
| Lead | Pb | 207 | 4.77 | 23 |
| Magnesium | Mg | 24.3 | 8.7 | 358 |
| Manganese | Mn | 54.9 | 13.2 | 240 |
| Mercury | Hg | 201 | 2.29 | 11.4 |
| Molybdenum | Mo | 95.9 | 36 | 375 |
| Nickel | Ni | 58.7 | 17.2 | 293 |
| Niobium | Nb | 92.9 | 26.8 | 288 |
| Osmium | Os | 190 | 31 | 163 |
| Platinum | Pt | 195 | 20 | 103 |
| Plutonium | Pu | 244 | ||
| Potassium | K | 39.1 | 2.33 | 56 |
| Rhodium | Rh | 103 | 21.7 | 211 |
| Selenium | Se | 79 | 5.4 | 68 |
| Silicon | Si | 28.1 | 50.2 | 1787 |
| Silver | Ag | 108 | 11.3 | 105 |
| Sodium | Na | 23 | 2.6 | 113 |
| Tantalum | Ta | 271 | 36 | 199 |
| Thorium | Th | 232 | 16 | 69 |
| Tin | Sn | 119 | 7 | 59 |
| Titanium | Ti | 47.9 | 18.7 | 390 |
| Tungsten | W | 184 | 35 | 190 |
| Uranium | U | 238 | 14 | 59 |
| Vanadium | V | 50.9 | 22.8 | 448 |
| Zinc | Zn | 65.4 | 7.35 | 112 |
- 1 kJ/kg = 0.23884 cal/g = 0.23884 kcal/kg = 0.4299 Btu/lbm
Latent heat of fusion is calculated as
L = 1000 Lmol / A (1)
where
L = latent heat of fusion (kJ/kg)
Lmol = latent heat of fusion (kJ/mol)
A = atomic weight (g/mol)
Note that atomic mass and atomic weight are two different things. Atomic mass is the mass of an individual element. Atomic weight is the average mass of all the isotopes of an element. Force is not involved.
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