The elastic behavior of solid naphthalene was studied by in situ synchrotron powder X-ray diffraction up to 13 GPa and 773 K and first principles computations to 20 GPa and 773 K. Fitting of the P-V experimental data to Vinet equation of state yielded T 0 = 8.4(3) GPa and T' = 7.2 (3) at V0 = 361 Å(3), whereas the thermal expansion coefficient ...
Question: (a) Use average bond enthalpies (Table 8.3) to estimate ΔH for the atomization of naphthalene, C10H8 : (b) Determine ΔH for the atomization of naphthalene using Hess's law and the data in Appendix C. (ΔHf∘ of solid …
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Naphthalene is a carbon-based chemical that is most commonly used to make mothballs.It has the chemical formula C 10 H 8, and is known within the scientific community as a polycyclic aromatic hydrocarbon.This chemical is found in nature but scientists can also synthetically create it in a lab. In addition to mothballs, it is used to make insecticide, many …
A spherical ball of solid, nonporous naphthalene, a"mothball," is suspended in still air. The naphthalene ball slowly sublimes, releasing the naphthalene vapor into the surrounding air by molecular diffusion-limited process. Estimate the time required to reduce the diameter from 2.0 to 0.50 cm when the surrounding air is at 347 K and 1.0 atm ...
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Naphthalene (C 10 H 8) is a solid at room temperature. It sublimes by the following process. Using the data below determine the best estimate of the sublimation temperature for naphthalene (the temperature at which this reaction will become spontaneous under standard state conditions). C 10 H 8 (s) → C 10 H 8 (g) ∆H° = 72.1 kJ/mol . ∆S ...
A sample of pure solid naphthalene (C10H8) weighing 0.6410 g is burned completely with oxygen to CO2(g) and H2O(l) in a constant-volume calorimeter at 25°C. The amount of heat evolved is observed to be 25.79 kJ. (The Mw of C10H8 is 128.7 g/mol, R = 8.3145 J/(K·mol)). Write and balance the chemical equation for the combustion reaction.
1. Thermodynamics of Solid-Vapor Equilibria The solubility of a nonvolatile solute in a super-critical gas is determined from standard thermody-namics16}. Solid-vapor equilibria considered in this study are those for which the solid phase is assumedto be pure solute (component 1) and the vapor phase is a
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naphthalene, the simplest of the fused or condensed ring hydrocarbon compounds composed of two benzene rings sharing two adjacent carbon atoms; chemical formula, C 1 0 H 8. It is an important hydrocarbon raw material that gives rise to a host of substitution products used in the manufacture of dyestuffs and synthetic resins.
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This study introduces a commercially available, low-cost, and highly volatile material, naphthalene (NA), as a solid additive used in PSCs based on PM6: Y6. NA is well mixed with a non-fullerene acceptor and can restrict excessive aggregation of the donor and acceptor, producing efficiencies comparable to PSCs processed by 1-chloronaphthalene ...
Calculate the maximum solubility in terms of mole fraction of solid naphthalene in liquid toluene at 25 oC is the enthalpy of fusion of naphthalene is 19.123 kJ/mol and its melting point is 78.2 oC. Your solution's ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on.
Quantity Value Units Method Reference Comment; T boil: 490. ± 5. K: AVG: N/A: Average of 10 out of 11 values; Individual data points Quantity Value Units Method Reference Comment; T fus: 353.2 ± 0.7
Temperature (K) A B C Reference Comment; 353.48 to 452.30: 4.27117: 1831.571-61.329: Fowler, Trump, et al., 1968: Coefficents calculated by NIST from author's data.
A sample of solid naphthalene is introduced into an evacuated flask and allowed to sublime. Use the data below to calculate the equilibrium vapor pressure of naphthalene (C10H8) in the flask at 35C. (1 atm =760 mmHg)[ R = 8.314 J/(mol.K)] C10H8(s) ⇌ C10H8(g) the answer is (0.12 mmHg) can you please explain how to get there? thank you!
2-methylbenzoic acid, naphthalene and magnesium chloride are present in a solid mixture. Propose a detail separation scheme to isolate these three compounds as solids. Below is a list of reagents available in lab. You may use any of these given reagents (e.g., acids, bases) as needed in your separation scheme and you also have access to a ...
Naphthalene (CAS Registry Number 91-20-3; molecular formula C10H8) is a white crystalline powder with a characteristic odour (of mothballs). It is a two-ring aromatic hydrocarbon isolated from coal tar. Synonyms used are antimite, …
Naphthalene weighs 1.162 gram per cubic centimeter or 1 162 kilogram per cubic meter, i.e. density of naphthalene is equal to 1 162 kg/m³; at 20°C (68°F or 293.15K) at standard atmospheric pressure.. In Imperial or US customary measurement system, the density is equal to 72.5413 pound per cubic foot [lb/ft³], or 0.67168 ounce per cubic inch [oz/inch³] .
The naphthalene vapours are collected, cooled, condensed, and then recrystallized to obtain solid naphthalene. The separation of the components of the coal tar is possible due to the differences in their boiling points. Naphthalene, with its boiling point of around 218°C, sublimates in the second distillation process, separating it from the ...
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Consider the placing 3.00 g of solid naphthalene in a 5.00 L container at 298 K. After some time equilibrium is established between solid and gaseous naphthalene (Kc = 4.29 x 10-6) : 1. naphthalene(s) naphthalene(g) What is the pressure of gaseous naphthalene at equilibrium? A) 1.00 atm B) 5.25 x 10-4 atm C) 1.05 x 104 atm D) 73.4 atm E) 4.29 x ...
The vapor pressure of solid naphthalene at 23 degree C is 0.07 mmHg. A naphthalene sphere of diameter 1 cm is suspended in still air. How long is required for the sphere to lose 50% of its initial mass? To answer this …
Naphthalene was first isolated from coal tar in 1819 by Alexander Garden; it represents about 10% of this complex mixture of aromatics. The industrial importance of naphthalene dates from the latter half of the last century, owing mainly to the ease with which it can be converted into sulfonic acids and thence also to the naphthols, for use as dyestuffs intermediates.
DOI: 10.3103/S1068364X07090062 Corpus ID: 97572292; Variation in the properties of liquid-solid binary systems formed by naphthalene homologs @article{Belousova2007VariationIT, title={Variation in the properties of liquid-solid binary systems formed by naphthalene homologs}, author={Olga A. Belousova}, journal={Coke and Chemistry}, year={2007}, volume={50}, …
Naphthalene has a relatively high vapor pressure for a solid (because of its volatility, naphthalene is the active ingredient in some brands of mothballs). In view of this, what might happen if you place naphthalene under vacuum or in an oven for several hours to dry it?
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A long circular cylinder 20 mm in diameter is fabricated from solid naphthalene, a common moth repellant, and is exposed to an airstream that provides for an average convection mass transfer coefficient of hm = 0.05 m/s. The molar concentration of naphthalene vapor at the cylinder surface is 5 × 10-6 kmol/m³, and its molecular weight is 128. ...
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