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  2. 2,3,4-Trimethylpentane - Wikipedia

    en.wikipedia.org/wiki/2,3,4-Trimethylpentane

    Related changes; Upload file; ... 2,3,4-Trimethylpentane Skeletal formula of 2,3,4-trimethylpentane with some implicit hydrogens added: ... Chemical formula. C 8 H 18 ...

  3. Ebullioscopic constant - Wikipedia

    en.wikipedia.org/wiki/Ebullioscopic_constant

    A formula to compute the ebullioscopic constant is: [2] = R is the ideal gas constant. M is the molar mass of the solvent. T b is boiling point of the pure solvent in kelvin. ΔH vap is the molar enthalpy of vaporization of the solvent.

  4. Trimethylpentane - Wikipedia

    en.wikipedia.org/wiki/Trimethylpentane

    This page was last edited on 10 January 2019, at 23:34 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  5. 2,2,4-Trimethylpentane - Wikipedia

    en.wikipedia.org/wiki/2,2,4-Trimethylpentane

    2,2,4-Trimethylpentane, also known as isooctane or iso-octane, is an organic compound with the formula (CH 3) 3 CCH 2 CH(CH 3) 2. It is one of several isomers of octane (C 8 H 18 ). This particular isomer is the standard 100 point on the octane rating scale (the zero point is n -heptane ).

  6. Thermodynamic activity - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_activity

    The relative activity of a species i, denoted a i, is defined [4] [5] as: = where μ i is the (molar) chemical potential of the species i under the conditions of interest, μ o i is the (molar) chemical potential of that species under some defined set of standard conditions, R is the gas constant, T is the thermodynamic temperature and e is the exponential constant.

  7. Solubility table - Wikipedia

    en.wikipedia.org/wiki/Solubility_table

    The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/(100 mL)), unless shown otherwise. The substances are listed in alphabetical order.

  8. Richmann's law - Wikipedia

    en.wikipedia.org/wiki/Richmann's_law

    [1] [9] According to this, the mixing temperature is the weighted arithmetic mean of the temperatures of the two initial components. Richmann's rule of mixing can also be applied in reverse, for example, to the question of the ratio in which quantities of water of given temperatures must be mixed to obtain water of a desired temperature.

  9. Pentane (data page) - Wikipedia

    en.wikipedia.org/wiki/Pentane_(data_page)

    Std enthalpy change of formation, Δ f H o liquid –173.5 kJ/mol Standard molar entropy, S o liquid: 263.47 J/(mol K) Enthalpy of combustion, Δ c H o liquid –3509 kJ/mol Heat capacity, c p: 167.19 J/(mol K) at 25 °C Gas properties Std enthalpy change of formation, Δ f H o gas –146.8 kJ/mol Standard molar entropy, S o gas: 347.82 J/(mol K)