A liquid solution at 400°K and 1 atm, contains 5mol% of '1' and 95mol% of '2'. The mixture is cooled isobarically. By how much does the temperature drop before just the first solid particle appears? Assume that both the phases form ideal solution. enthalpies fus. 2 (J/mol)=9843 [125°K] The melting point and fusion (constant) are: Tml = 353.4K;T2 = 278.7K ; AH fus,1 (J/ mol) = 19008; AH

In this lab, you will determine the vapour pressure (P) of water at various temperatures and use this data to find its enthalpy of vaporization (AvapH). More generally, for an unknown liquid: if a plot of In P vs. 1/T gives a slope of -8038 K, what is its AvapH in kl/mol? Do not worry about how realistic the value is. Assume R = 8.314 J mol- K-.

şvurular Posta Gönderileri Place a piece of copper in 0 Word ik: Her şey hazır 19° Gözden Geçir Görünüm Yardım When 50 g of phenol is mixed with 50 g of water at 20°C, two phases are formed. from phases one contains 8% phenol by mass and the other contains 72% phenol. The mass of each phase and this Find the masses of the components in the phases. Ne yapmak istediğinizi söyleyin (Ctrl)

2-E, A liquid mixture of 30 mol benzene, 30 mol toluene, and 40 mol water initially at 70°C and 101.3 kPa total pressure is heated slowly at a constant pressure of 101.3 kPa to 90°C. The vapor generated stays in contact with the remaining liquid. Assuming equilibrium between phases at all times, estimate (a) the temperature at which vaporization begins, (b) the composition of the first vapor. (c) the temperature at which vaporization is complete, and (d) the composition of the last liquid. Note: Water is essentially totally immiscible with benzene and toluene. Each liquid phase contributes to the total vapor pressure. Over the temperature range involved, the vapor pressure of benzene is 2.60 times that of toluene, and the vapor pressure of water is 1.23 times that of toluene. Vapor pressure of water is: T. °C 70 72 74 76 78 80 82 84 86 88 90 P, kPa 31.2 34.0 36.9 40.1 43.6 47.3 51.3 55.6 60.1 64.9 70.1