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- Extintion coeficient for Y is 1280The sublimation point of CO2 (solid) at 1 atm is -78.37oC and the enthalpy of sublimation(solid to vapor) is 3116 joule/mole. cp (CO2(solid))=50 joule/mole.K. and for cp CO2(g) lookat Appendix.5 gram CO2 gasis held at T=300/X oK in container for some times as represented below:CO2 (gas) at ToK ==➔Dry Ice (Solid CO2) at ToKCalculate:a) The enthalpy of deposition at ToKb) The entropy of deposition at ToK.c) The entropy change of surroundings at ToK. Assume surroundings behavereversibly. Surrounding temperature is ToKd) Entropy change and entropy produced of universe.e) Is this deposition process spontaneous? prove! At given temperature T. x=4.5A water Stonge tank contatns liquid and vapour in eguilibruim at ilo2. The distance from bottom of the tank to the liquld level is 8 m. What is the absolute pressure at the bottom of the tank. [218 kpa]
- 1. It is the lowest temperature at which a liquid is present in a solid-liquid system. 2. It is the point where the concentrations of both equilibrium phases in a liquid-liquid system are equal. 3. What do you call the state at which the compositions of the vapor and liquid are equal? 4. In a vapor liquid system, at what point will the mixture becomes a saturated vapor? Choices Dew point critical point triple point bubble point azeotrope eutectic point immisibility supercritical fluid plait pointPolycarbonate, PC, is used for aircraft canopies. A batch of this polymer was found to fail prematurely when impacted by a 4 pound bird during qualification studies. You suspect that the problem is due to a molecular weight difference for this particular batch of polymer compared to previous batches. You decide to perform dilute solution viscosity studies to determine the Mol.wt. Assume density is 1.2g/cm3 What solvent would you use? Justify your answer Please answer very soon will give rating surelyImagine that we have a closed system containing pure isobutane that is in a state of vapor-liquid equilibrium at known P sat < Pc. What can we say about mean translational kinetic energy of the molecules in the liquid (KL) and vapor (KV ) phases? a) KV − KL > 0 b) KV − KL < 0 c) KV − KL = 0 d) We need more information.
- . Compatible Polymers A and B are to be blended to achieve a glass-transition temperatureof 60 oC. Tg’s of Polymers A and B are 30 and 85 oC, respectively, using an appropriateequation determine the composition of the blend.What is ΔSsys for a freezing phase transition at 29.7 °C for a compound that freezes at 29.7 °C and the ΔHsys = -19.45 kJ mol-1 for this process? Express your answer in J mol-1 K-1 to at least two significant figures.if ethanol has a vapor pressure of 0.08 bar and a molecular weight of 46 g/mol and water has a vapor pressure of 0.03 bar and a molecular weight of 18 g/mol. c) if the total pressure measured at these conditions is 0.02 bar, what can we conclude from the interaction between ethanol-water, respect to ethanol-ethanol and water-water? Justify your answer briefly.
- What is the mole fraction of magnesium nitrate, Mg(NO3)2, in an aqueous solution that is 5.549 wt % in magnesium nitrate? MW(Mg(NO3)2) = 148.315 g/mol. 5.834e-2 1.721e-1 7.080e-3 9.929e-1Q1a-> A sample of hydrogen (H₂) gas was collected over water at 60°C. If the total volume of gas collected was 53.9 mL and the atmospheric pressure was 1.14 bar, what mass (in g) of hydrogen gas was collected above the water? The vapour pressure of water at 60°C is 150 torr. Q1b=> What is the molar mass (in g mol-¹) of a gas which has a density of 1.91 g/L at a pressure of 0.91 bar and temperature 15.3°C? Your answer may not correspond to an actual gas. Do not try to identify the gas.Pressure was exerted with a piston on molten naphthalene at 95 °C. The vaporpressure of naphthalene when the applied pressure is 1.0 bar is 2.0 kPa. What is thevapor pressure when the pressure on the liquid is 15 MPa? The mass density ofnaphthalene at this temperature is 1.16 g cm-1.