In a solid or liquid, there is a dynamic balance between the cohesive forces holding the atoms or molecules together and the conditions created by temperature. OSTI.GOV Journal Article: THERMAL CONDUCTIVITY OF SODIUM AND LITHIUM. K). Latent heat is the amount of heat added to or removed from a substance to produce a change in phase. New Age International, 2006, ISBN: 9788122417722. In general, when a material changes phase from solid to liquid, or from liquid to gas a certain amount of energy is involved in this change of phase. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Unlike gases or liquids, solid materials tend to keep their shape when undergoing thermal expansion. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. PHYSICAL REVIEW B 84, 054203 (2011) Electrical and thermal conductivity of liquid sodium from first-principles calculations Monica Pozzo,1 Michael P. Desjarlais,2 and Dario Alfe`1,* 1Department of Earth Sciences, Department of Physics and Astronomy, London Centre for Nanotechnology and TYC@UCL, University College London, Gower Street, London WC1E 6BT, United Kingdom 2) You may not distribute or commercially exploit the content, especially on another website. Latent Heat of Fusion of Sodium is 2.598 kJ/mol. The information contained in this website is for general information purposes only. The Cookies Statement is part of our Privacy Policy. Latent Heat of Vaporization of Sodium is 96.96 kJ/mol. For these materials, the area and volumetric thermal expansion coefficient are, respectively, approximately twice and three times larger than the linear thermal expansion coefficient (αV = 3αL). We use cookies to ensure that we give you the best experience on our website. Liquid sodium is used as a heat transfer fluid in some types of nuclear reactors because it has the high thermal conductivity and low neutron absorption cross section required to achieve a high neutron flux in the reactor. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. We present the results of an experimental study of the thermal conductivity of aqueous solutions of sodium chloride at concentrations of 5, 10, 15, 20, and 25% NaCl over the temperature range 20–330°C. Thermal Conductivity of Sodium (liquid) Liquid sodium is used as a heat transfer fluid in some types of nuclear reactors because it has the high thermal conductivity and low neutron absorption cross section required to achieve a high neutron flux in the reactor. When latent heat is added, no temperature change occurs. The melting point of a substance depends on pressure and is usually specified at standard pressure. 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. Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbørn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer. ISBN 978–92–0–106508–7. : Physico-Energetic Inst. John Wiley & Sons, Incorporated, 2011. McGraw-Hill Education, 2011. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. DOE Fundamentals Handbook, Volume 2 of 3. The thermal conductivity of sodium chloride is 6,5 W/m.K at 25 0C. It is a soft, silvery-white, highly reactive metal. THERMAL CONDUCTIVITY OF SODIUM AND LITHIUM (in Russian) Full Record; Other Related Research; Authors: Rudnev, I I; Lyashenko, V S; Abramovich, M D Publication Date: Fri Sep 01 00:00:00 EDT 1961 Research Org. Therefore higher temperatures imply greater distance between atoms. al. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Liquids tend to have better thermal conductivity than gases, and the ability to flow makes a liquid suitable for removing excess heat from mechanical components. If it is not isometric, there may be different expansion coefficients for different crystallographic directions, and the crystal will change shape as the temperature changes. If so, give us a like in the sidebar. The volumetric thermal expansion coefficient is defined as: where L is the volume of the material and dV/dT is the rate of change of that volume per unit change in temperature. J. R. Lamarsh, Introduction to Nuclear Reactor Theory, 2nd ed., Addison-Wesley, Reading, MA (1983).