9.2-1. In a particular solid-liquid phase transition the point Po, To lies on the coexistence curve....
9.4-7. A particular substance satisfies the van der Waals equation of state. The coexistence curve is plotted in the P, † plane, so that the critical point is at (1,1). Calculate the reduced pressure of the transition for T = 0.95. Calculate the reduced molar volumes for the corresponding gas and liquid phases.
71 Determine the slope (in atm/K) of a solid- liquid coexistence line (in a P-T phase diagram) at 273.15 K, given that AHfus = 6.01 kJ /mol, Vi 0.0180 L/mol, and Vs 0.0196 L/mol. Make sure your slope has appropriate units for the type of phase diagram we are dealing with (i.e. it should only have pressure and temperature units).
7) Determine the slope in atm/K) of a solid-liquid coexistence line (in a P-T phase diagram) at 273.15 K, given that AHrus = 6.01 kJ/mol, V = 0.0180 L/mol, and Vs = 0.0196 L/mol. Make sure your slope has appropriate units for the type of phase diagram we are dealing with (i.e. it should only have pressure and temperature units)
The solid/liquid phase transition of water near 1 atm external pressure is an important feature of our daily lives. Some relevant data concerning the transition include the density of liquid water at 273.15 K (0.999 g cm-3), the density of ice at 273.15 K (0.917 g cm-3), and the enthalpy of fusion of water at 273.15 K (6.008 kJ mol-1). (a) On a phase diagram, this transition appears as a line. Calculate the slope of this transition line near the...
13 The equations of the sublimation and the vaporization curves of a particular material are given by (sublimation). (vaporization) In P 0.04-6/T In P 0.03 - 4/T T + dT = const. T const. Figure 8.4 P. o diagrarn for an infinitesimal Carn ot cycle. where P is in atmospheres (a) Find the temperature of the triple point. (b) Show that the spe cific latent heats of vaporization and sublimation are 4R and 6R, respectively. (You may assume that the...
X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of Substance X have been determined: boiling point 35. melting point enthalpy of fusion6.00 kJ/mol enthalpy of vaporization 34.00 kJ/mol 46. J-K mol (solid) 73. JK mol (vapor 2.80 g/em (solid) 2.40 g/mL (liquid density heat capacity61.JKmol Ciquid) You may also assume X behaves as an ideal gas in the vapor phase. Suppose a...
GENERAL FEATURES OF A PHASE DIAGRAM; HYBRID ORBITALS AND FORMAL CHARGE MODEL 1 solid structure liquid rc Pressure in atm solid structure Il Temperature in K — KEY QUESTIONS 1. What quantities are plotted on the x-and y-axes of a phase diagram? 2. 2. How many different phases are shown by the phase diagram in the model? b. What are the labels used to identify them? 3. What do the solid lines in a phase diagram represent 4. 2. How...
only 6...7...and 8 The Gibbs function of a thermodynamic system is defined by G H- TS. If the system is consisting of two phases 1 and 2 of a single substance and maintained at a constant temperature and pressure, the equilibriunm condition for the coexistence of these two phases is that the specific Gibbs functions are equal Consider now a first-order phase change between the phase 1 and the phase 2. At the phase boundary, the equilibrium condition for the...
can you answer two of the questions in the phot please. 1. The point P(4. 8) lies on the curve y-(6-x), Suppose Q is the point (x,1 + (6-x)'). a. Find the slope of the secant line PO for the following values of x. 3. 3.99 4. 3.999 6. 4.1 7. 4.01 8. 4.001 the curve at P b. Use your results from part a to make a guess of the slope of the line tangent to c. Use your...
Answer the following questions A. Multiple Choices (16 point each) 1. Which of the following is stro (A) , AS (B) 4. 0, AS (C) , AS (D) 4. 0, AS 2. Consider the following reaction NH.NO, OS) HOD) NIN Which of the following is (ar) true about this reaction GUNAH (A) the reaction is endothermis c hungsbe (B) This reaction must use the entry of the universet (C) This reaction is spontaneously low temperature (D) This reaction will reaction...