Concept explainers
What is the theoretical
Answer to Problem 57SEP
The theoretical
Explanation of Solution
Express mass of one
Here, atomic or molar mass of
Express mass of one
Here, atomic or molar mass of
Express
Express
Conclusion:
Write the reaction for
Here, iron oxide is
The atom percentage of
Hence, the theoretical
Write the atomic mass of iron and oxygen.
Write the number of atom per mole or Avogadro number.
Substitute
Substitute
Substitute
Substitute
Hence, the
From above calculations of
Want to see more full solutions like this?
Chapter 4 Solutions
Foundations of Materials Science and Engineering
- what are the miller indices of the plane stu in the diagram shown in the image attachedarrow_forwardIn each equation, label the acids, bases, and conjugate pairs:arrow_forwardThe equilibrium vacancy concentration at 800 °C is 1015 times of that at 25 °C, calculate the molar Gibbs free energy of formation of vacancy in Joule/mole.arrow_forward
- Show the miller-bravais index for a HCP structure.arrow_forwardConsider the ReO3 unit cell shown below, with a = 3.74 Å and ∆ Hsub = 626 kj/mol (a) What is the Bravais lattice and smallest atomic basis that describes ReO3? Write the coordinates of each atom in the basis. (b) What is the coordination and bonding geometry for the Re and O atom?arrow_forwardOn the bond-force curve below, indicate the equilibrium distance between two atoms.arrow_forward
- Iron (Fe) undergoes an allotropic transformation at 912°C: upon heating from a BCC [ alpha phase) to a FCC (gamma phase). Accompanying thistransformation is a change in the atomic radius of Fe from R bcc= 0.12584 nm to R fcc= 0.12394 nm and, in addition, a change in density.Compute the percentage volume change per atom (Vfinal |-V initial |)/ (V; initial |) associated with this reaction . Indicate whetherthere is an expansion or zontraction taking place during the processarrow_forwardCalculate the fraction of atom sites that are vacant for copper at its melting temperature of 1084degC. assume an energy vacancy formation of 0.90eVlatom. * 6.56 x 10^-5 O 0.9992 O 4.56 x 10^-4 O 2.19 X 10^-4arrow_forwardDuring freezing of a Cu-Zn alloy, we find that the composition is non-uniform. By heating the alloy to 600°C for 3 hours, diffusion of zinc helps to make the composition more uniform. What temperature would be required if we wished to perform this homogenization treatment in 30 minutes?arrow_forward
- Chemistry Consider FCC copper. If bond energy per atom is 5.62 × 10-19 J, and its atomic radius is 0.128 nm, the surface energy for (100) plane will bearrow_forwardThe composition of the α in an 42 wt% griffinium alloy at 662 degrees centigrade is (enter the wt% griffinium)arrow_forwardCalculate the invariant reactions for Cu-Zn Reaction (eutectic eutectoid peritectic peritectoide) Temperature Transformationarrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY