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- Explain in detail why the distribution coefficient would be influenced by the mobile phase.Naphthalene has a log Kow of 3.33. Estimate its soil-water partition coefficient normalized to organic carbon and the 95 percent confidence interval of your estimate.Distinguish between TSS and TDS to understand why one is a physical parameter and the other is a chemical parameter.
- (a) What is the difference between the states of phase equilibrium and metastability? (b) Explain with the aid of neatly drawn binary phase diagrams the following terms? i. Isormophous phase diagram ii. Eutectic Isotherm iii. Peritectic pointBriefly explain three of the following concepts and methods. You may wish to use sketches or diagrams. (c) (i) The critical micelle concentration. Surface characterizations using low energy electron diffraction (LEED). (ii) (iii) Undercooling. (iv) Synthesis of polystyrene latex colloids. (v) The Eley-Rideal (ER) mechanism for heterogeneous catalysis. Please help me and show as much working as possibleE5D.1(b) Sketch the phase diagram of the system NH3/N₂H4 given that the two substances do not form a compound with each other, that NH3 freezes at -78°C and N₂H4 freezes at +2°C, and that a eutectic is formed when the mole fraction of N₂H is 0.07 and that the eutectic melts at -80°C.
- Give the relation between gas-phase composition and liquid-phase composition at equilibrium.Explain the following approaches to increasing the physical stability (uniformity) of dispersed systems in terms of interfacial behavior: - Wetting of hydrophobic powders -Flocculation with polymers, electrolytes, and surfactantsSuppose that the acid HA (with dissociation constant Ka) is partitioned between aqueous phase 1 and organic phase 2. Calling the partition coefficient K for HA and assuming that A is not soluble in the organic phase, show that the distribution coefficient is given by: D= K· [H+ ] / [H+ ] + Ka = K · aHA