what is the "electrochemical area" of a metal surface in a dielectric liquid and how is...
what is the "electrochemical area" of a metal surface in a dielectric liquid and how is it different from the geometrical surface area
Homework Answers
Electrochemical surface area is the as area of the surface where the electron transfer is taking place. On the other hand, the geometrical surface area is just the summation of the physical area covered by the metal surface. In reality the electrochemical surface area is always greater than the geometrical one. The ratio between electrochemical surface area to the geometrical surface area is called roughness factor.
The surface of the metal is not always smooth. So, for rough surface it gives more active sites for reaction. So it's important to have an idea about the electrochemical surface area to have idea about reaction rate.
Add Answer to:
what is the "electrochemical area" of a metal surface in a
dielectric liquid and how is...
When you have a metal that is electrified using DC and surrounded by a dielectric liquid, what are the different types o...
When you have a metal that is electrified using DC and surrounded by a dielectric liquid, what are the different types of heat transfer processes that take place (and what are they called)? E.g. I know one of the processes is Joule heating. What about convection in the dielectric, radiative heat transfer, etc? How do they work in this case?
The surface tension of a liquid is independent of the: A-Temperature of the liquid Area of...
The surface tension of a liquid is independent of the: A-Temperature of the liquid Area of the liquid surface Nature of the liquid D-Impurities present in the liquid
A cell membrane has a surface area of 1.2 × 10−7 m2, a dielectric constant of...
A cell membrane has a surface area of 1.2 × 10−7 m2, a dielectric constant of 5.5, and a thickness of 7.1 nm. The potential difference across the membrane is 60 mV. Round youranswers to two significant figures. (a) What is the magnitude of the charge on each surface of the membrane? Q = pC (b) How many ions are on each surface of the membrane, assuming they are singly charged (|q| = e)? ___ × 10
When designing a capacitive cell with two identical metal electrodes and a dielectric liquid (r134a) between them (think...
When designing a capacitive cell with two identical metal electrodes and a dielectric liquid (r134a) between them (think it's neutral), what are the specifications to look for when selecting the metal? Obviously, it has to be conductive, but what about corrosion/oxidation resistance, other factors, I'm not really sure about the material properties needed in this situation. I'm being told to use SS 316 but not sure why.
When capacitors are connected in parallel, they have the same -separation -charge -dielectric -voltage -surface area
When capacitors are connected in parallel, they have the same -separation -charge -dielectric -voltage -surface area
A conducting plate of metal is charged uniformly so the surface charge per unit area, A...
A conducting plate of metal is charged uniformly so the surface
charge per unit area,
A conducting, plate of metal is charged uniformly so the surface charge per unit area, σ = 6.35 C/m2, (only on the surface!) as in the figure below. Charge on surface of conductor Find the electric field at a distance of 8.26 cm from the plate. N/C.
What is the significance of corrosion rate and how will you incorporate this in structural design? If the surface area of a more noble metal is doubled what will happen to the corrosion rate when con...
What is the significance of corrosion rate and how will you incorporate this in structural design? If the surface area of a more noble metal is doubled what will happen to the corrosion rate when connected to a less noble metal? Explain why. Based on the galvanic series Discuss 3 ways in which galvanic corrosion can be prevented. Explain with schematic diagrams.
A metal sphere with a surface area of half a meter squared is charged from neutral...
A metal sphere with a surface area of half a meter squared is charged from neutral to to 96 mC/m2 at a constant rate 8 mA. How many seconds does this take and how many electrons per second are transferred? Use 16x10-20 C for the charge of the electron.
A cylindrical metal can, 0.1 m high and 0.05 m in diameter, contains liquid helium at...
A cylindrical metal can, 0.1 m high and 0.05 m in diameter, contains liquid helium at its normal boiling point of -452.074 degree Fahrenheit. At this temperature Helium's heat of vaporization is 20.4 kJ/kg. The walls of the helium container are 1.2 cm thick and have a thermal conductivity of 13.889 W/(m K). The helium container is surrounded by liquid nitrogen at a temperature of -327.64 degrees Fahrenheit. a) What is the conductive surface area of the metal cylinder? b)...
A cylindrical metal can, 0.1 m high and 0.05 m in diameter, contains liquid helium at...
A cylindrical metal can, 0.1 m high and 0.05 m in diameter, contains liquid helium at its normal boiling point of -452.074 degree Fahrenheit. At this temperature Helium's heat of vaporization is 20.4 kJ/kg. The walls of the helium container are 1.2 cm thick and have a thermal conductivity of 13.889 W/(m K). The helium container is surrounded by liquid nitrogen at a temperature of -327.64 degrees Fahrenheit. a) What is the conductive surface area of the metal cylinder? b)...
The surface tension of a liquid is independent of the: A-Temperature of the liquid Area of the liquid surface Nature of the liquid D-Impurities present in the liquid
A conducting plate of metal is charged uniformly so the surface
charge per unit area,
A conducting, plate of metal is charged uniformly so the surface charge per unit area, σ = 6.35 C/m2, (only on the surface!) as in the figure below. Charge on surface of conductor Find the electric field at a distance of 8.26 cm from the plate. N/C.
Most questions answered within 3 hours.
-
Do not neglect the old for the new. The existing business must
not lose priority simply...
asked 1 hour ago -
Kylie is a single mom with two dependent children,
Tanner, age 7 and Olivia, age 11....
asked 2 hours ago -
Phosphorous + bromine = phosphorous tribromide. If 35.0 g of
bromine are reacted and 27.9 grams...
asked 3 hours ago -
Derive the long wavelength limit of the Planck energy density
distribution
asked 3 hours ago -
Calculate the pH of each of the following solutions.
0.50 M HBr
3.1×10−4 M KOH
4.2×10−5...
asked 7 hours ago -
For the year ended December 31, Depot Max’s cost of merchandise
sold was $85,600. Inventory at the...
asked 7 hours ago -
Week 10 - Professional Memo Assignment
Professional Memo Assignment
Your mission for this week, should you...
asked 7 hours ago -
Write a Python program that stores the data for each
player on the team, and it...
asked 7 hours ago -
In
the last 3 months, mike never knows when he is going to get his
allowance...
asked 8 hours ago -
Is Ca(OH)2 a Bronsted base, Lewis base, or both? Why?
asked 7 hours ago -
1A- Why don’t voters complain about U.S. tariffs on imported
sugar?
Because sugar is only a...
asked 8 hours ago -
Cash Payback Period
Primera Banco is evaluating two capital investment proposals for
a drive-up ATM kiosk,...
asked 8 hours ago