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The phase diagram for ethanol shows the phase behavior with changes in temperature and pressure. The curve between the critical point and the triple point shows the ethanol boiling point with changes in pressure. It also shows the saturation pressure with changes in temperature.
Structure and properties. Thermodynamic properties. Spectral data. Vapor pressure of liquid. Density of ethanol at various temperatures. Data obtained from Lange 1967. These data correlate as ρ [g/cm 3] = −8.461834 × 10 −4 T [°C] + 0.8063372 with an R2 = 0.99999. Properties of aqueous ethanol solutions. Data obtained from Lange 1967.
Vapour Pressures of Methanol, Ethanol, Pentan-1-ol, and Octan-1-ol from the Normal Boiling Temperature to the Critical Temperature, J. Chem. Thermodyn., 1975, 7, 2, 185-190, https://doi.org/10.1016/0021-9614(75)90267-0.
1 Ιουλ 2014 · The Clausius-Clapeyron equation allows us to estimate the vapour pressure at another temperature, if we know the enthalpy of vaporization and the vapor pressure at some temperature. Example. Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 °C. What is the vapor pressure of ethanol at 50.0 °C? Solution.
Clausius-Clapeyron equation. The Clapeyron equation states: \frac {dP} {dT} = \frac {H} {T \cdot \Delta V} dT dP = T ⋅ ΔV H. where: \frac {dP} {dT} dT dP . — Derivative of pressure with respect to temperature; H H — Specific latent heat — the thermal energy absorbed or released during a phase transition; T T – Temperature; and.
Much more accurate ways of estimating fluid densities are available in our computers. But the classic compressibility factor chart (used with the values in Table A.1) allows us to make a very quick estimate of the departure from ideal gas behavior, and it gives some insight into the form of that departure. Here.
1 Αυγ 2010 · Extended properties include density, vapor pressure, surface tension, viscosity, molar and specific heat capacity, enthalpy of vaporization, thermal conductivity and static relative permittivity (dielectric constant) of ethanol.
