7. Sketch a plot on graph paper illustrating the variation of the Gibbs energy of the...
Make a sketch of the Gibbs free energy, G, versus temperature, T, for a single component system as the temperature increases at a fixed pressure, P. Indicate the temperatures where the pure substance changes from liquid to solid, and from solid to gas, and comment on the slopes of the plot of G versus T.
11. (15 Points) The Gibbs free energy of the solid phase and the liquid phase of a substance of one mole are shown (dashed lines) below as a function of T under a constant P- 10' N/m2. The molar volume of the solid and of the liquid are 18 x 103 m/mole and 2.0 x 10 m'/mole, respectivel (a) If one mole of the liquid transforms to the solid under a constant P 10 N/m2, calculate the c hanges of...
1. Based on the phase diagram in Figure 1, construct the Gibbs free energy curves for the solid and liquid phases at T1,T2, T3 and T4. Assume that A and 8 components are mutually soluble in any amounts in both solid and liquid phases (unlimited solubility) and form ideal solutions. (30 marks) liquid т, T2=Tmg Jie line solid T. O X х,
(ii) Sketch the energy band diagram of this doped material in (i) at 0 K and identify all the important features in your diagram. (3) (iii) Now sketch the same energy band diagram as in (i) but at a temperature of 300 K. Again, label all the important features in your diagram. (3)
Using the Ag-Cu phase diagram shown below. Draw schematically the Gibbs free energy curves of all phases at 900 C, 779 C, and 700 C. 1100 Liquid 1000 .9619. 900 Eutectic temperature 779 800ra 92% 8% 700 600 500 400 10 20 60 70 80 90 100 Cv AG Weight percent copper
8. Use the graph paper below to plot your data. Be sure to label the X and Y axis and give your graph a descriptive title. a. What is the optimal pH for catalase activity? b. What happened to the catalase at pH 2? c. Why did the product production slow down over time, even at the optimal pH? Unit 7, page 7
In piling technology, explain the difference between a “displacement pile” and a “non-displacement pile”.(4marks) (b)Using graph paper, sketch 3 curves illustrating typical trends of variation of pile head resistance, shaft resistance and base resistance with increasing settlement, as expected from load testing a CFA pile in clay. Explain the differences between the three curves.(6 marks)(c)A bored cast in-situ pile of 0.6 m diameter by 10 m long is installed through a 6 m thick layer of stiff clay overlying 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...
please show me how you solve for the answer The graph below shows the Gibbs energy as a function of the extent of reaction () for the gas phase reaction N204 (8) 2 NO2 (g) at a temperature of 420 K and a total pressure of 1 bar. N204 = 2 NO2 100 99 1.0.25 98. Een GE) /kJ/mol 97 96 T = 420 K 0.8 0 0.2 0.4 0.6 /mol The minimum in the Gibbs energy is indicated on...
19. You are given the following data for a new substance, Redlandium. Phase Change Data for Redlandium Normal Melting Point 57.3 °c 127.5C 224.0 C 2.5 atm Normal Boiling Point Critical Temperature Critical Pressure O. The triple point is 80.0 °C and 0.6 atm. The sublimation line will pass through the origin. The melting point line will pass through the point 75.0 °C and 2.6 atm. The boiling point line will pass through the point 200.0 °C and 1.75 atm....