The mechanical properties of a metal may be improved by incorporating fine particles of its oxide. Given that the moduli of elasticity ofthe metal and oxide are, respectively, 50 GPa and 380 GPa, what is the (a) upper-bound, and (b) lower-bound modulus of elasticityvalues (in GPa) for a composite that has a composition of 0.59 vol% of oxide particles.(a)GPa(b)iGPa

Given data:Emetal=50GPa moduli of elasticity of the metalEoxide=380GPa moduli of elasticity of the…

Answered: The mechanical properties of a metal…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Discuss the relations between: the entropy (particularly of the universe), the standard Gibbs' free energy change, the spontaneity, the equilibrium constant, and the equilibrium position for or associated with a process.
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A 65.0 g piece of gold at 650 K is dropped into 162 g of H2O(l) at 298 K in an insulated container at 1 bar pressure. CP,m for Au and H2O at 298 K are 25.4 and 75.3 J⋅K−1⋅mol−1, respectively. Calculate the temperature of the system once equilibrium has been reached. Assume that CP,m for Au and H2O are constant at their values for 298 K throughout the temperature range of interest.
(16) Solid potassium chlorate decomposes into solid potassium chloride and oxygen according to the following balanced chemical equation: KCIO, (s) → KCI (s) + 3/2 O, (g) Given the enthalpy of reaction is -77.6 kl and the entropy of reaction is 494.6 3/K, the overall Gibbs free energy change for this reaction at 40.0°C is: (A) (B) (C) (D) (E) -252 k -157 kJ -1.55 x 10 kJ -232.5 kJ -97.4 kJ
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MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H (kJ/mol) S° (J/(mol · K)) CH, OH (1) -238.6 126.8 O₂(g) 0 205.2 CO₂(g) -393.5 213.8 CO2(aq) -413.8 117.6 H₂O(g) -241.8 188.8 H₂O(1) -187.8 70.0 ▼ Part D where no represents the stoichiometric coefficients of the products, n, represents the st of the reactants, and Sº represents the standard entropies. AGxn= Calculate AG at 25°C. Express your answer in kilojoules to three significant figures. Submit = Provide Feedback 15] ΑΣΦ Request Answer Part E Complete previous part(s) [2(S° co₂(g)) + 4(S° H₂O(g))]- [2(S° CH₂OH()) + 3(S° 0₂(E [2(213.8 J/K)+4(188.8 J/K)] - [2(126.8 J/K) + 3(2 314 J/K MacBook Pro P Pearson ? kJ Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contac
In the following three instances, which choice is greener ina chemical process? Explain. (a) A reaction that can be runat 350 K for 12 h without a catalyst or one that can be run at300 K for 1 h with a reusable catalyst. (b) A reagent for thereaction that can be obtained from corn husks or one thatis obtained from petroleum. (c) A process that produces noby-products or one in which the by-products are recycledfor another process.
The standard enthalpy of formation of SnCl₂ (s) is - 340 kJ/mol and that for SnCl4 (s) is-511 kJ/mol. From these data, we can calculate that for the reaction SnCl₂ (s) + Cl₂ (g) →→SnCl4 (s), the value of AH O cannot be determined as AH, for Cl₂ (g) is not given. O equals - 851 kJ. O equals + 171 kJ. O equals - 171 kJ.
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