The mechanical properties of a metal may be improved by incorporating fine particles of its oxide. Given that the moduli of elasticity of the metal and oxide are, respectively, 50 GPa and 380 GPa, what is the (a) upper-bound, and (b) lower-bound modulus of elasticity values (in GPa) for a composite that has a composition of 0.59 vol% of oxide particles. (a) GPa (b) i GPa
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- In the Deacon process for the manufacture of chlorine, HCl and O2 react toform Cl2 and H2O, Sufficient air (21 mol% O2, 79% N2) is fed to provide 35% excess oxygen and the fractional conversion of HCl is 85%. (a) Calculate the mole fractions of the product stream components, usingatomic species balances in your calculation. (b) Again calculate the mole fractions of the product stream components,but use the extent of reaction in the calculation.The vaporization of water is one factor that contributes to the raising of baked goods. When 1.0g of water is vapourized inside a cake at 150c and 105kPa what volume in L of vapour is produced?10.11/ A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy is heated to 250°C (480°F), at which temperature it is entirely an a-phase solid solution . The alloy is to be melted to the extent that 50% of the speci- men is liquid, the remainder being the a phase. This may be accomplished either by heating the alloy or changing its composi- tion while holding the temperature con- stant. (a) To what temperature must the speci- men be heated? (b) How much tin must be added to the 1.5-kg specimen at 250°C to achieve this state? 10.15) A magnesium-lead alloy of mass 5.5 ka consists of a solid a phase that has a compo- sition that is just slightly below the solubility limit at 200°C (390°F). (a) What mass of lead is in the alloy? (b) If the alloy is heated to 350°C (660°F). how much more lead may be dissolved in the a phase without exceeding the solubility limit of this phase? 10.27 A hypothetical A-B alloy of composition 55 wt% B-45 wt% A at some temperature is found to consist of mass…
- Provide a particle level explanation for the following: when the temperature of a sealed, rigid (non-flexible) container is decreased, pressure also decreases.What is the specific heat of gaseous Xe at constant volume (give answer in J/(kg*K)).When you determined the MW of a volatile liiquiid using the Erlenmeyer flask with the aluminum foil cap & the pinhole, explain briefly how you were able to obtain: -Mass of the vapor - Volume of the vapor -Pressure of the vapor - temperature of the vapor B) Calculate the MW of iodethane, a volatile liquid, given the following data obtained from the experiment in 12A, given that PV=nRT (R= 0.0821 L.atm.mol-1.K-1) Mass of residual liquid = 1.6384 g Pressure = 745.6 torr Volume of vapor = 327.8 mL Temp. of vapor = 100.0 C
- How is energy evolved in depositionrelated to those for condensationand freezing?Suppose, at room temperature, Hg(l) has a density of 13.595 g/cm3, and a liquid metal alloy of Ga, In and Sn has a density of 6.433 g/cm3, What is the height of a column of the liquid metal alloy that is supported by a pressure difference of 0.560 atm?13.3p. If you allow one pound of carbon dioxide to sublime (change from CO2(s) to CO2(g)) at room conditions of roughly 1atm and 25C, what volume would it occupy?
- The density of rhombic sulfur is 2.070 g cm-3 and that of monoclinic sulfur is 1.957 g cm-3. Can the application of pressure be expected to make monoclinic sulfur more stable than rhombic sulfur?A container of internal volume 22.0 m3 was punctured, and a hole of radius 0.050 mm was formed. If the nitrogen pressure within the container is initially 122 kPa and its temperature 293 K, how long will the pressure take to fall to 105 kPa assuming that the temperature is held constant?The pressures deep within the Earth are much greater than those on the surface, and to make use of thermochemical data in geochemical assessments you need to take the differences into account. (a) Given that the enthalpy of combustion of graphite is -393.5 kJ mol-1 and that of diamond is -395.41 kJ mol-1, calculate the standard enthalpy of the C(s, graphite) → C(s, diamond) transition. (b) The densities of graphite and diamond are 2.250 g cm-3 and 3.510 g cm-3 , respectively. Calculate the internal energy of the transition when the sample is under a pressure of 150 kbar.