Benzene (data Page) - Thermodynamic Properties

Thermodynamic Properties

Phase behavior
Triple point 278.5 K (5.4 °C), 4.83 kPa
Critical point 562 K (289 °C), 4.74 MPa
Std enthalpy change
of fusion, ΔfusHo		 9.9 kJ/mol at 5.42 °C
Std entropy change
of fusion, ΔfusSo		 35.5 J/(mol·K) at 5.42 °C
Std enthalpy change
of vaporization, ΔvapHo		 33.9 kJ/mol at 25°C
30.77 kJ/mol at 80.1°C
Std entropy change
of vaporization, ΔvapSo		 113.6 J/(mol·K) at 25°C
87.1 J/(mol·K) at 80.1°C
Solid properties
Std enthalpy change
of formation, ΔfHosolid		 ? kJ/mol
Standard molar entropy,
Sosolid		 45.56 J/(mol K)
Heat capacity, cp 118.4 J/(mol K) at 0°C
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid		 +48.7 kJ/mol
Standard molar entropy,
Soliquid		 173.26 J/(mol K)
Enthalpy of combustion, ΔcHo –3273 kJ/mol
Heat capacity, cp 134.8 J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas		 +82.93 kJ/mol
Standard molar entropy,
Sogas		 269.01 J/(mol K)
Heat capacity, cp 82.44 J/(mol K) at 25°C
van der Waals' constants a = 1823.9 L2 kPa/mol2
b = 0.1154 liter per mole

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