3. Explain how the intensive properties of a material are reflected in the unit cell. Are all the properties of a bulk material the same as those of its unit cell? Explain your answer.
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3. Explain how the intensive properties of a material are reflected in the unit cell. Are all the properties of a bulk material the same as those of its unit cell? Explain your answer.
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- 5Explanation cannot be hand-drawn, please type out the answer in the shortest possible manner.8. What is the difference in packing efficiency between the hcp structure and the ccp structure? 9. For a two dimensional lattice with, a1= a a2= a/2 D- T1/3 (a) what is the area of a primitive cell? (b) show that the lattice is a rectangular lattice? (c) draw the Wigner-Seitz cell of this lattice and show that the area of the Wigner-Seitz cell is the same as in (a).
- QUESTION 10 88.0 g of carbon dioxide gas occupies a volume of 0.300 m³ when its temperature is 270 C. What is the presure of the gas? Assume that Mcarbon = 12.0 g/mole and Moxygen = 16.0 g/mole. а. 6.72 kPa b. 9.30 kPa C. 16.6 kPa d. 23.0 kPa е. 12.7 kРаQuestion: A hypothetical sample that has a plane-strain fracture toughness of 27.0 MPa m 1/2 It has been determined that fracture results at a stress of 122 MPa when the maximum internal crack length is 8.8 mm. For this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 6.5mm Record answers for each step4. Determine the work required to bring into a rest of a moving molecule whose mass and speed is 1.67 × 10^−27 kg and 0.97 × 10^5 m/s, respectively.
- 4. At standard temperature and pressure, carbon dioxide has a density of 1.98 kg/m³. What volume does 1.70 kg of carbon dioxide occupy at standard temperature and pressure? A) 0.43 m3 B) 0.86 m3 C) 1.7 m3 D) 2.3 m3 E) 4.8 m3A computer chip 0.32cm thick is made up of layers of silicon. If the top and bottom layers are each 0.03cm thick and the inner layers are each 0.02cm thick, how many inner layers are there? A. 13 B. 15 C. 16 D. 52 E. 64.2. An isolated system consists of three identical, distinguishable atoms. Each atom can have energy 0, ε, 2ε. What are the statistical weights of the macrostates which have total energy of 0, ε and 2ε respectively?
- 2. Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P of the gas is inversely proportional to the volume V of the gas. (That is: at a constant temperature, the equation P = c. 1 holds, for some constant c.) V (Note: The standard units of volume are cubic meters, m³, and the standard units of pressure are Pascals, Pa, or kiloPascals, kPa.) 3 (a) Suppose that the pressure of a sample of air that occupies 0.106 m³ at 25°C is 50 kPa. Write V as a function of P. (b) Calculate dV dP when P = 50 kPa. What is the meaning of the derivative? What are its units?Question A2 a) Sketch, on two separate diagrams, a plan (2D projection) of the sphalerite (cubic ZnS) and fluorite (CaF2) structures. b) By annotating your diagrams or otherwise, identify two symmetry elements that are common to both structures. c) By annotating your diagrams or otherwise, identify two symmetry elements that are present in one structure (stating which one) but not the other.Problems 1. Tetrahedral angles. The angles between the tetrahedral bonds of diamond are the same as the angles between the body diagonals of a cube, as in Fig. 10. Use elemen- tary vector analysis to find the value of the angle.