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6 Density of ethanol at various temperatures. ... at −40 °C 3.530 mPa·s: at −30 °C 2.731 mPa·s: ... Density relative to 4 °C water ...
The interest stems from that accurate measurements of the unit cell volume, atomic weight and mass density of a pure crystalline solid provide a direct determination of the Avogadro constant. [3] The CODATA recommended value for the molar volume of silicon is 1.205 883 199 (60) × 10 −5 m 3 ⋅mol −1, with a relative standard uncertainty of ...
The fourth column contains the proportion of CO 2 released when the fuel is converted for energy, with respect to its starting mass, and the fifth column lists the energy produced per kilogram of CO 2 produced. As a guideline, a higher number in this column is better for the environment.
At atmospheric pressure, mixtures of ethanol and water form an azeotrope at about 89.4 mol% ethanol (95.6% ethanol by mass, [83] 97% alcohol by volume), with a boiling point of 351.3 K (78.1 °C). [84] At lower pressure, the composition of the ethanol-water azeotrope shifts to more ethanol-rich mixtures. [85]
Ethanol: 12.18 0.08407 Ethyl acetate: 20.72 0.1412 Ethylamine: 10.74 0.08409 Ethylene [2] 4.612 0.0582 Fluorine [2] 1.171 0.0290 Fluorobenzene: 20.19 0.1286 Fluoromethane: 4.692 0.05264 Freon: 10.78 0.0998 Furan [2] 12.74 0.0926 Germanium tetrachloride: 22.90 0.1485 Helium: 0.0346 0.0238 Heptane [2] 31.06 0.2049 1-Heptanol [2] 38.17 0.2150 ...
On the previous IPTS-68 scale the densities [6] at 20 °C and 4 °C are, respectively, 0.9982041 and 0.9999720 resulting in an RD (20 °C/4 °C) value for water of 0.99823205. The temperatures of the two materials may be explicitly stated in the density symbols; for example: relative density: 8.15 20 °C 4 °C; or specific gravity: 2.432 15 0
Thermite (powder Al + Fe 2 O 3 as oxidizer) 4.00: 18.4: Hydrogen peroxide decomposition (as monopropellant) 2.7: 3.8: battery, Lithium-ion nanowire: 2.54: 95% [clarification needed] [13] battery, Lithium Thionyl Chloride (LiSOCl2) [14] 2.5: Water 220.64 bar, 373.8 °C [citation needed] [clarification needed] 1.968: 0.708: Kinetic energy ...
The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution of the fat and skin is approximately 24%. The specific heat of tissues range from ~0.7 kJ · kg−1 · °C−1 for tooth (enamel) to 4.2 kJ · kg−1 · °C−1 for eye (sclera). [13]