## About Europium

Europium is a moderately hard, silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Europium is one of the least abundant elements in the universe. Only about 5×10−8% of all matter in the universe is europium.

## Europium – Specific Heat, Latent Heat of Fusion, Latent Heat of Vaporization

**Specific heat of Europium is ****0.18 J/g K**.

**Heat capacity** is an extensive property of matter, meaning it is proportional to the size of the system. **Heat capacity C** has the unit of energy per degree or energy per kelvin. When expressing the same phenomenon as an intensive property, the **heat capacity** is divided by the amount of substance, mass, or volume, thus the quantity is independent of the size or extent of the sample.

**Latent Heat of Fusion of Europium is ****9.21 kJ/mol**.

**Latent Heat of Vaporization of Europium is ****143.5 kJ/mol**.

Latent heat is the amount of heat added to or removed from a substance to produce a change in phase. This energy breaks down the intermolecular attractive forces, and also must provide the energy necessary to expand the gas (the **pΔV work**). When latent heat is added, no temperature change occurs. The enthalpy of vaporization is a function of the pressure at which that transformation takes place.

See also: Mechanical Properties of Europium

### Summary

Element | Europium |

Specific Heat | 0.18 J/g K |

Heat of Fusion | 9.21 kJ/mol |

Heat of Vaporization | 143.5 kJ/mol |

Density | 5.244 g/cm3 |

Source: www.luciteria.com