Table of Molar Enthalpies of Fusion and Vaporization - ChemPRIME

Table of Molar Enthalpies of Fusion and Vaporization

From ChemPRIME

Jump to: navigation, search
Substance Formula ΔH(fusion)
/ kJ mol1
Melting Point / K ΔH(vaporization) / kJ mol-1 Boiling Point / K (ΔHv/Tb)
/ JK-1 mol-1
Neon Ne 0.33 24 1.80 27 67
Oxygen O2 0.44 54 6.82 90.2 76
Methane CH4 0.94 90.7 8.18 112 73
Ethane C2H6 2.85 90.0 14.72 184 80
Chlorine Cl2 6.40 172.2 20.41 239 85
Carbon tetrachloride CCl4 2.67 250.0 30.00 350 86
Water* H2O 6.00678 at 0°C, 101kPa
6.354 at 81.6 °C, 2.50 MPa
273.1 40.657 at 100 °C,
45.051 at 0 °C,
46.567 at -33 °C
373.1 109
n-Nonane C9H20 19.3 353 40.5 491 82
Mercury Hg 2.30 234 58.6 630 91
Sodium Na 2.60 371 98 1158 85
Aluminum Al 10.9 933 284 2600 109
Lead Pb 4.77 601 178 2022 88

*http://www1.lsbu.ac.uk/water/data.html

This is a table of Molar Enthalpies of Fusion and Vaporization for a set of common substances. When heated, a solid will increase in temperature until it reaches its melting point. Then, temperature will cease to rise, and heat energy will be supplied to the process of separating the molecules and forming a liquid phase.

In the same way, when a liquid reaches its boiling point, the temperature will cease to rise, and energy will be supplied to the process of separating molecules into the gas phase. This table shows the amount of energy needed to do this for a mole of each substance.

This table is found on Enthalpy of Fusion and Enthalpy of Vaporization.

Personal tools