Explain how a fuel-cell breathalyzer works.

Q: Why do batteries go dead, but fuel cells do not?

A:

Q: what are fuel cells?

A: Fuel cells:It is an electrochemical cell that converts chemical energy of fuel and an oxidizing…

Q: Describe how you would design an experiment to determine the cell potential of a new, voltaic cell…

A: Answer - The cell potential, Ecell, is the measure of the potential difference between two half…

Q: enumerate the importance of fuel cell

A: A question based on electrochemical cells that is to be accomplished.

Q: What is the purpose of the salt bridge in an electrochemical cell? To maintain electroneutrality To…

A: Given : We have to tell the purpose of salt bridge in an electrochemical cell.

Q: enumerate 10 importance of fuel cells

A: The answer is attached below-

Q: Differentiate between Batteries and Fuel Cells?

A: A battery is a combination of galvanic cells attaches together through a series circuit. Batteries…

Q: Identify what is reduced and what is oxidized in the zinc-carbondry-cell battery. What features make…

A: The oxidation number represents the number of electrons gain or loses by an element to become…

Q: Why a voltaic cell can do work until Q = K

A: The working of the voltaic cell depends upon the two different metals dipped in an electrolyte…

Q: What are the fuel cells? Explain the working of the hydrogen-oxygen fuel cell

A: The cells which convert the energy from the combustion of fuels directly into the electrical energy…

Q: Define the term half-Reactions?

A: ANSWERE IS DISCUSSED BELOW :

Q: Fuel cells are a particular type of electrochemical cell that require a constant source of chemical…

A: The following reaction takes place at the anode of the alkaline fuel cell: H2 + 2OH-  →  2H2O + 2e-…

Q: 23. Write the balanced cell reaction for the cell schematic below, calculate the standard cell…

A:

Q: What is a lead/acid cell used for?  and details of what it works in.

A: Lead-acid batteries are used for emergency lighting and provide power to the sump pump in the event…

Q: What electrolyte could be used in Ethanol-Fuel cells and how do they work? Equations are needed

A: When ethanol is used as a fuel directly into a cell, then the category of fuel cells is known as…

Q: 1. How do fuel cells differ from traditional electrochemical cells (batteries)

A: Battery doesn't store electrical or chemical energy whereas a fuel cell allows extraction of…

Q: What is the difference between batteries and concentration cells?

A: The difference between batteries and concentration cell given in the following steps:

Q: For a concentration cell to work,   there must be differences in concentrations   there must be no…

A: About a concentration cell: It is a galvanic cell made of two half-cells, each of which containing…

Q: Consider a voltaic cell whose overall reaction is Pb2+1aq2 + Zn1s2 ¡ Pb1s2 + Zn2+1aq2. What is the…

A: Electrochemical cell is a type of cell which converts chemical energy to electrical energy.

Q: a) Explain the construction and working principle of solid oxide fuel cells.

A: Fuel cells are energy coverter.It changes energy one form to another. Mainly chemical energy to…

Q: A friend wants you to invest in a new battery she has designed that produces 24 V in a single…

A: In voltaic cell, oxidation and reduction of metals occurs at the electrodes.  At cathode, reduction…

Q: What is a fuel cell?

A: A fuel cell is an electro chemical cell.

Q: Q#4. Explain the working principle of fuel cell? Can the fuel cell will replace the vehicle…

A:

Q: For a voltaic cell, which will cause the greatest decrease in cell potential? Select one: A.…

A: We need to find which of the given changes will lower the cell potential by maximum value.

Q: 12

A: In the methanol fuel cell The half reactions are Oxidation half reaction  CH3OH +H2O ----->  CO2…

Q: why are Electrochemistry and Electrochemical Cells important

A: Both Electrochemistry and Electrochemical cells plays an important role in the era of this emerging…

Q: Given a diagram of an electrolytic cell, identify the anode, cathode, direction of which electrons…

A:

Q: What is the formula for calculating the E° for Voltaic Cell

A: A voltaic cell is an electrochemical cell that uses a chemical reaction to produce electrical…

Q: Explain chemically how an electrolytic cell works for both hydrolysis of water and electroplating.

A: An electrolytic cell is an electrochemical cell that drives a non-spontaneous redox reaction through…

Q: Define weak electrolyte Define strong electrolyte What is electroplating?

A:

Q: Why would a battery manufacturer be interested in this quantity ?

A: In this question, we need to explain the specific energy of a battery.

Q: In Zn-Cu galvanic cell, the amount of electrical energy produced is A. 2.12 x 105 J B. -6.18 x 103…

A:

Q: How does the Fuel-Cell Breathalyzer work?

A: A major amount of road accidents occur due to drunk and driving. Thus, in order to eliminate such…

Q: Use cell notation to describe the galvanic cell where copper(II) ions are reduced to copper metal…

A: In electrochemistry, Galvanic cell is a kind of electrochemical cell in which the current is…

Q: Chemical energy is converted to electrical energy in: A electrolytic cell B electrolysis galvanic…

A: We are given two different statement as follows:

Q: Illustrate how electrochemical cell can be used as an alternative source of energy. Give examples.

A: Electrochemistry is a branch of chemistry that relates electricity and chemical reactions associated…

Q: Discuss the advantages and disadvantages of fuel cells over conventional power plants in producing…

A: ANSWER IS DISCUSSED BELOW ;

Q: The ions in a molten sodium chloride are free to migrate to the electrodes of an electrolytic cell…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: cells

A: Fuel cells are a type of electrochemical cells which produces electricity based on the chemical…

Q: Can the “fuel” of a fuel cell be a solid?

A: Fuel cell is a instrument which converts chemical energy to the electrical energy. It is composed of…

Q: How do batteries generally work? If mercury batteries are so long lasting and efficient, then why…

A: working of battery are based on  spontaneous and non- spontaneous process , there are two types cell…

Q: (a) What is the difference between a battery and a fuel cell?(b) Can the “fuel” of a fuel cell be a…

A: A battery or a storage cell is a series of galvanic cell in which all reactants are present to…

Q: What are the three common types of portable rechargeable batteries and how does each one work?

A: Nickel-cadmium (NiCad) batteries consist of a solid cadmium anode and a NiO(OH). The electrolyte…

Q: What are the top 10 elements to build a battery out of? and why?

A: The energy is produced by the interaction of different elements at the atomic level. The energies…

Q: The mostly familiar known .37 standard cell is Fuel cell .A B. Le Clanche C. Electrolytic cell

A: There are two types of electrochemical cells in electrochemistry known as voltaic or galvanic and…

Q: What is a nickel-cadmium cell? State its one merit and one demerit over lead storage cell. Write the…

A: Ni-Cd battery is a rechargeable battery. It is used in portable computers, camcorders, and small…

Q: Explain the basic operation of a battery

A: A battery is a device which converts chemical energy into electrical energy. The flow of electrons…