The Science and Engineering of Materials (MindTap Course List)
7th Edition
ISBN: 9781305076761
Author: Donald R. Askeland, Wendelin J. Wright
Publisher: Cengage Learning
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Chapter 5, Problem 5.4P
To determine
The reasons of making carbonated beverages bottles of PET is.
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V. Using the figure/data below, answer the following questions for polystyrene:
(a) What is the specific free volume at 120°C?
(b) What is the specific free volume at 80°C?
ag "24 x 104 1ºc
OR "55x 104 10C
Spacific
Volume
100°C
Temperature, OC
Kindly solve it completely by hand if possible.
Calculate the number of grams in one mole of
ZnC12.6H20 (calculate molecular weight)?
O=16.00
H=1.01
Zn=65.39
Cl=35.45
Chapter 5 Solutions
The Science and Engineering of Materials (MindTap Course List)
Ch. 5 - What is the driving force for diffusion?Ch. 5 - Give three examples of materials processes that...Ch. 5 - In the carburization treatment of steels, what are...Ch. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - A certain mechanical component is heat treated...Ch. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Compare the diffusion coefficients of carb on in...Ch. 5 - Prob. 5.18PCh. 5 - Activation energy is sometimes expressed as...Ch. 5 - Prob. 5.20PCh. 5 - The activation energy for the diffusion of copper...Ch. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Prob. 5.24PCh. 5 - Prob. 5.25PCh. 5 - Write down Fick’s first law of diffusion. Clearly...Ch. 5 - Prob. 5.27PCh. 5 - Prob. 5.28PCh. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - A 1-mm-thick BCC iron foil is used to separate a...Ch. 5 - Prob. 5.32PCh. 5 - Prob. 5.33PCh. 5 - A 0.001 in. BCC iron foil is used to separate a...Ch. 5 - Prob. 5.35PCh. 5 - Prob. 5.36PCh. 5 - Prob. 5.37PCh. 5 - Prob. 5.38PCh. 5 - Prob. 5.39PCh. 5 - Prob. 5.40PCh. 5 - Prob. 5.41PCh. 5 - Prob. 5.42PCh. 5 - Prob. 5.43PCh. 5 - Prob. 5.44PCh. 5 - Prob. 5.45PCh. 5 - Prob. 5.46PCh. 5 - Prob. 5.47PCh. 5 - Prob. 5.48PCh. 5 - Pure zinc is to be diffused into copper by dipping...Ch. 5 - Nitriding is a process in which nitrogen is...Ch. 5 - Determine the carburizing time necessary to...Ch. 5 - Prob. 5.52PCh. 5 - Prob. 5.53PCh. 5 - Prob. 5.54PCh. 5 - Prob. 5.55PCh. 5 - Prob. 5.56PCh. 5 - Prob. 5.57PCh. 5 - Prob. 5.58PCh. 5 - Compare the rate at which oxygen ions diffuse in...Ch. 5 - Prob. 5.60PCh. 5 - Prob. 5.61PCh. 5 - Prob. 5.62PCh. 5 - Prob. 5.63PCh. 5 - Prob. 5.64PCh. 5 - Prob. 5.65PCh. 5 - A 0.80% C steel must operate at 950°C in an...Ch. 5 - Prob. 5.67PCh. 5 - Prob. 5.68PCh. 5 - Prob. 5.69PCh. 5 - Prob. 5.70PCh. 5 - Prob. 5.71PCh. 5 - Prob. 5.72PCh. 5 - Most metals and alloys can be processed using the...Ch. 5 - Prob. 5.74PCh. 5 - Prob. 5.75PCh. 5 - Prob. 5.76PCh. 5 - A ceramic part made from MgO is sintered...Ch. 5 - Prob. 5.78PCh. 5 - What are the advantages of using hot pressing and...Ch. 5 - Prob. 5.80PCh. 5 - Prob. 5.81DPCh. 5 - Design a spherical tank, with a will thickness of...Ch. 5 - Prob. 5.83DPCh. 5 - Prob. 5.84DPCh. 5 - Prob. 5.85DPCh. 5 - Prob. 5.86CPCh. 5 - Prob. 5.87CPCh. 5 - Prob. 5.88CPCh. 5 - Prob. 5.1KP
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- What are the steps to produce Plastic bottles of medical ?arrow_forwardMolecular weight data for some polymer are tabulated here. Compute (a) the number-average molecular weight, (b) the weight-average molecular weight. (c) If it is known that this material's degree of polymerization is 710, which one of the polymers listed in Table 14.3 is this polymer? Why? Molecular Weight Range g/mol 15,000-30,000 Xi Wi 0.04 0.01 30,000-45,000 0.07 0.04 45,000-60,000 0.16 0.11 60,000-75,000 0.26 0.24 75,000-90,000 0.24 0.27 90,000 105,000 0.12 0.16 105,000-120,000 0.08 0.12 120,000-135,000 0.03 0.05arrow_forwardWhat is the molecular weight (in g/mol) of polypropylene with a DP of 1200?arrow_forward
- In the following multiple-choice problems, circle the one answer which best completes the Sentence (i) (iii) (iv) (v) The glass transition temperature of polystyrene is about 110 °C. Relative to a sample at 120 °C, at room temperature polystyrene is: a. orders of magnitude more viscous b. slightly more viscous c. equally as viscous less viscous d. e. none of the above. The glass transition temperature of polystyrene is about 110 °C. Relative to a sample at 120 °C, a sample of polystyrene at 130 °C is: a orders of magnitude more viscous b. slightly more viscous c. equally as viscous d. less viscous e. none of the above. Suppose a tensile test is performed on two identical materials except that one has a deep scratch on its surface whereas the other is perfectly smooth. Relative to the smooth specimen, the test will find that the scratched specimen has a lower. a. elasticity b. yield stress c. tensile stress d. elongation to failure e. none of the above. Thermoplastic polymers such as…arrow_forward(2). (a). List THREE type of materials that commonly used to make the container for carbonated drink. Give ONE advantages and ONE disadvantages for all three materials that you have choose. (All THREE materials must choose from different class of materials) Senaraikan TIGA jenis bahan yang biasa digunakan sebagai bekas bagi air minuman bergas. Bagi ketiga-tiga bahan yang dipilih, berikan SATU kelebihan dan SATU kekurangan setiap bahan tersebut. (Bahan-bahan yang dipilih mestilah dari pengkelasan bahan yang berbeza) (b) Determined the miller indices for the directions and planes in the following unit cell: Terangkan index miller bagi arah dan satah di dalam unit cell berikut:arrow_forwardBased on the graph below, reinforcing plastic with glass fibers results in: A. An increase in plasticity B. An increase in inelastic deformation C, An increase in stiffness D. A decrease in stiffnessarrow_forward
- Polyethylene Terephthalate or PET is a linear semicrystalline thermoplastic polymer widely used in food packaging. Calculate the density of this polymer when the total crystallinity is 65.4%. The density for the totally amorphous PET material is 1.33 g/cm³, and the density of the totally crystalline is 1.44 g/cm³. 1.38 g/cm³ 1.40 g/cm³ 1.42 g/cm³ 1.80 g/cm³ None of the abovearrow_forwardConnecting rod (as shown below) is a car part that connects engine piston to crankshaft and converts reciprocating motion into rotating motion. It performs under load at high temperature around 150°C. Long carbon fiber thermoplastic composite (LFT) with 30% carbon fiber has been considered to replace metal (steel or aluminum) rod to improve efficiency. Based on the data for different polymers listed in the table above, which polymer(s) would you choose as the polymer matrix for the connecting rod? What is your rationale?arrow_forward.5 moles of Neon gas at 210C has a volume of 0.935 m3. Without changing the pressure, the volume is change to 0.784 m3. (a) What is the average root mean square velocity of a molecule after the change? (b) What is the total kinetic energy of the gas? (MWNe = 20.18 u)arrow_forward
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