Explain two types of electrochemical cells

Reference no: EM13272048

Two types of electrochemical cells which are based on thermodynamic principles can be described. Which of the following statements about these cells is correct?

A. The current in the external wire flows from cathode to anode in both cells.

B. Oxidation occurs at the cathode only in the voltaic cell.

C. The free energy change, ?G, is negative for the electrolytic cell.

D. The cathode is positive in a voltaic cell but negative in an electrolytic cell.

Reference no: EM13272048

Questions Cloud

Explain two types of electrochemical cells : Two types of electrochemical cells which are based on thermodynamic principles can be described. Which of the following statements about these cells is correct

Research and discuss the legal and ethical basis for advance : Advance Directives-research and discuss the legal and ethical basis for Advance Directives such as the Living Will and Durable Power of Attorney for healthcare.

What is the thinnest film : A thin film of MgF2 (n=1.38) coats a piece of glass. Constructive interference is observed for the reflection of light with wavelengths of 500nm and 625nm.

What will the cash flows for this project be : The tax rate is 30 percent and the required return on the project is 12 percent. (Use SL depreciation table) What will the cash flows for this project be?

Compute the final equalibrium temperature of the system : A 60 gram iron at 60o C is dropped into 200 gram of water at 20o C, What is the final equalibrium temperature of the system

Explain and identify the reducing agent in the reaction : Sodium thiosulfate, Na2S2O3, is used as a "fixer" in black and white photography. Identify the reducing agent in the reaction of thiosulfate with iodine.

What will the cash flows for this project be : The truck will have no effect on revenues, but it is expected to save the firm $23,800 per year in before-tax operating costs, mainly labor. The firms marginal tax rate is 34 percent. What will the cash flows for this project be?

User Account

All Pages