Calculate and plot the Köhler curves for dry NaCl particles of diameters 40 nm and 100 nm respectively. Calculate the critical supersaturations. Which one will most easily form a cloud droplet? Use surface tension of water, full solubility and u = 2, T = 298K.
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- Calculate the vapor pressure of propanol (b.p. 97.0 ∘C97.0 ∘C) at the gas chromatography column temperature of 95.0 ∘C95.0 ∘C using the form of the Clausius–Clapeyron equation shown ln(?1?2)=−(Δ?vap?)(1?1−1?2)ln(P1P2)=−(ΔHvapR)(1T1−1T2) where ?R is the ideal gas constant, Δ?vapΔHvap is the enthalpy of vaporization, ?1T1 and ?2T2 are two different temperatures, and ?1P1 and ?2P2 are the vapor pressures at the respective temperatures. The enthalpy of vaporization can be estimated using Trouton's rule, Δ?∘vap=(88 J·mol−1⋅K−1)×?bp.ΔHvap∘=(88 J·mol−1⋅K−1)×Tbp. ?=P= TorrTorr Calculate the vapor pressure of pentane (b.p. 36.0 ∘C36.0 ∘C) at the same column temperature. ?=P= TorrTorr For compounds of the same chemical class, what is the relationship between vapor pressure of a compound and retention in gas chromatography? As the vapor pressure decreases, retention time decreases. As the vapor pressure increases, retention time increases. As…What is the strength of the ionic interactions between an ion with 1 positive charges and an ion with 2 negative charges, when the distance between them is 32.5 nanometers and the solvent is water, at 25 oC with a dielectric constant of 78.5? Calculate answer to 7 decimal places.specify units in the answer. Thank you very much for your assistance.Determine the number of phases, components, and the variance (degrees of freedom) for the following: (a) A solution made from water, MgCl2 and KBr. (b) A solid mixture containing powdered graphite and powdered diamond. (c) A gaseous mixture containing water and carbon dioxide that was produced from the combustion of a stoichiometric mixture of oxygen and propane gases. Assume the reaction went to completion and there are no residual amounts of propane nor oxygen present. (d) A system containing PCl5(g), PCl3(g) and Cl2(g) in equilibrium. (e) Oxygen gas and hydrogen gas in equilibrium with liquid water.
- Osmotic pressure of the gold sol withconcentration of 4 g/l at 293 K is 8 Pa.Calculate the particles diffusion coefficient if gold density is 19.3 g/cm3, medium viscosity 10-3 Pa•s.Assuming that at 298 K the CMC for a cerrain surfactant is 6 X 10-3 M and that its mean aggregation number is 70, estimate the concentration of micelles if the bulk sur factant concentration is 0.08 M A quantity (390 mg) of n-hexane is solubilized in 100 mL of the surfactant solution. Assuming that all the solubilized n-hexane molecules are in the micelles, what is the mean occupation number of 71-hexane in the micelles For the system , estimate tlGo for micellization if the molecular weight of the surfactant is 326 g mol-I . If the enthalpy of micellization is 8 kJ mol- I, find the en tropy change when 1 mol of micelles forms from 70;:mhnomers.For a given surfactant solution, T = 3.2 x 10-5 mol m2. i) Explain where this equation applies, and what it means. ii) Calculate the interfacial area occupied by an individual surfactant molecule at the specified value of I. iii) Outline briefly how I can be obtained from experimental data.
- A certain saturated salution of Cas(POrlz has [Cat]= PO48 ] = 2.9 X 107 What is the value of Kps for Caz (PO4)z? %3D1. Assume that the hydrocarbonlike interior cavity of the SDS micelle has a diameter of - 3 nm and that it contains three solubilized benzene molecules. Calculate the "local" concentration of benzene in the micelle 2. Assuming that at 298 K the CMC for a cerrain surfactant is 6 X 10-3 M and that its mean aggregation number is 70, estimate the concentration of micelles if the bulk sur factant concentration is 0.08 M. 3. A quantity (390 mg) of n-hexane is solubilized in 100 mL of the surfactant solution in question 2. Assuming that all the solubilized n-hexane molecules are in the micelles, what is the mean occupation number of 71-hexane in the micelles? 4. For the system in question 2, estimate tlGo for micellization if the molecular weight of the surfactant is 326 g mol-I . If the enthalpy of micellization is 8 kJ mol- I, find the en tropy change when 1 mol of micelles forms from 70;:mhnomers. I ONLY NEED THE SOLUTION FOR QUESTION 4. thank you!1 g of organic matter dissolved 20 times more in ether than water is dissolved in 500 cm3 of water. Organic matter will be extras from the aqueous phase using 20 cm3 of ether each time. How many times should the extraction phase be repeated to extraction at least 90% of organic matter massively?
- Temperature - composition diagram for a two-component A + B system with one eutectic and one peritectic point. (b) Temperature - composition diagram for a two-component A + B system with one vapour phase and two partially miscible liquid phases. Two - component, where solids in equilibrium with water vapour form the compounds A.H2O, A.2 H2O and A.6H2O Pressure composition diagram for the salt (A) - Hydrate (.H2O) system. PLEASE DRAW THEM ON PAPER PLEASEdraw and sketch a group for action poyential polarization phases with membrane potential vm in milivolts5) A very thick slab has a uniform concentratio of solute A of C0-1x10^-2 mol /m^3 suddenly, the front face of the slab is exposed to a fluid having a concentration of solute A of C1=0.10 mol/m^3 a) Assuming that the slab is a semi-infinite solid,write down the equation that is cto be solved to determine the concentration profile of solute A, with the boundary and initial conditions. DO NOT solve. b) Calculate the flux in the solid at the surface (x=0) after t-300 s. The diffusion coefficient in the solid is DAB =4x 10^-9 m^2/s
