Question: Diffusion of oxygen in YBa2Cu3O7 doped with silver was measured. It was seen that the diffusion of oxygen was slowed down by silver doping, as

Diffusion of oxygen in YBa2Cu3O7 doped with silver was measured. It was seen that the diffusion of oxygen was slowed down by silver doping, as shown in the data here.
Temperature T (˚C)Diffusion Coefficient D (cm2/s)
650..........................................................2.89 × 10-7
700..........................................................8.03 × 10-7
750..........................................................3.07 × 10-6
Assume that these data are sufficient to make a straight line fit for the relationship between ln(D) and 1/T and calculate the values of the activation energy for diffusion of oxygen in YBa2Cu3O7 containing silver.

Step by Step Solution

★★★★★

3.39 Rating (171 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The data for ln D vs 1T are shown below When fitted to a straight ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

814-P-M-S (1160).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

Certain ceramic materials such as those based on oxides of yttrium, barium, and copper have been shown to be superconductors near liquid nitrogen temperature (~77 to 100 K). Since ceramics are...

Zinc oxide (ZnO) ceramics are used in a variety of applications, such as surge protection devices. The diffusion of oxygen in single crystals of ZnO was studied by Tomlins and co-workers. These data...

Deposition of silver from a turbulent stream (Fig. 21B.3), an approximately 0.1 N solution of KNO3 containing 1.00 x 10 -6 g-equiv. AgNO 3 per liter is flowing between parallel Ag plates, as shown in...

Because of intravascular resistance to oxygen diffusion, the oxygen partial pressure at the blood-tissue interface may be less than the average oxygen partial pressure in the blood. This effect can...

The capsule is wrapped in a clear plastic film. Film thickness 42 x 0.01 pm at 25C. Oxygen gas pressure at 25C equals 2 x 104 Pa. Oxygen gas diffusion is steady state diffusion. Diffusion flux passes...

Design an experiment to measure the diffusion of oxygen in grain boundaries in a metal Me. Specifically, determine the product Db ( = width of a grain boundary and Db = chemical diffusion coefficient...

) Design an experiment to measure the diffusion of oxygen in grain boundaries in a metal Me. Specifically, determine the product Db ( = width of a grain boundary and Db = chemical diffusion...

Example of a simultaneous diffusion and a heterogeneous reaction process is the diffusion controlled combustion of coal in a fluidized bed to produce energy by the heat of combustion. Pulverized coal...

For the following three questions, state if you would solve the problem as being in equilibrium, steady state, or neither. A 20 m thick membrane of Pd is exposed to a hydrogen atmosphere with pH2 =...

Diffusion of oxygen through cell membrane is planned to worked using a model system. 10 mm thick membrane which has a cross sectional area of 0.2 m 2 is used in this study as steady state diffusional...

If the loan is $165000 at 3.75% for 25 years at $857.06 as a fixed payment per month, what is the loan (principal) after one monthly payment? What is interest over the life of the loan?

A client phones to ask you to explain the financial intermediation process as they were getting confused about the differences between mutual fund managers and stock brokers. They also ask whether...

When the firm's charter requires that new secondary stock issues be offered to existing shareholders before the general public, this is called the Multiple choice question. primogeniture right. proxy...

16 Rising Gas Costs Crimping Budgets More [people] are substituting higher-priced goods with cheaper oneschoosing McDonalds coffee over Starbucks, for example, or hitting a bulk warehouse chain such...

The high-strength steel in Figure 7-20 is subjected to a stress alternating at 200 revolutions per minute between 600 MPa and 200 MPa (both tension). Calculate the growth rate of a surface crack when...

Explain the significance of the Weibull distribution.

A nickel-based alloy (INCONEL alloy 801) beam (Figure 7-29) is annealed and subjected to a cyclical load of 100 N with equal maximum and minimum stresses. The beam diameter is 5 mm, and the beam...

Calculate the fair value of the following contracts with 50 trading days (t = 50/250 = 0.20 years) to expiration and a continuously compounded annual risk-free rate of 1.5%. Need to find answer for...

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 180 engines and the mean pressure was 5.7 pounds/square inch (psi). Assume the...

Changes in stockholders' equity Listed are the equity sections of balance sheets for years 2014 and 2015 as reported by Mountain Air Ski Resorts, Inc. The overall value of stockholders' equity has...