Fuel cell is an electrochemical energy conversion device in which fuel and oxidant react to generate electricity. Which of the following statements describes the conversion of energy in fuel cell?

Q: 7. A fuel cell is more efficient than combusting the hydrogen in a combustion engine because: a.…

A: The hydrogen-combustion engines aren't as efficient as a hydrogen fuel cell.

Q: The electrolysis of a concentrated sodium chloride solution would   yield sodium metal   produce…

A: Electrolysis is a process in which electricity is passed through a electrolytic solution through two…

Q: Write the balanced equation for the reaction betweenhydrogen gas and oxygen gas in a fuel cell.

A: Write the balanced equation for the reaction between hydrogen gas and oxygen gas in a fuel cell.

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: Oxidize the following molecule as much as possible OH Oxidize

A: In this question, we will discuss about Oxidation of 2° alcohol. You can see details Solution below.…

Q: Which is the most difficult to oxidise? Iron or silver?

A: The elements given are iron i.e Fe and silver i.e Ag.

Q: True/False. The electrical energy is measured as electrons are transferred between the anode and…

A: In a Galvanic cell, electrical energy is generated due to a difference in chemical potential energy…

Q: What reactions occur when a lead storage battery supplies electrical energy? Lead(II) sulfate is…

A: The reactions involved in lead storage battery are shown below,

Q: Aluminum can be produced by the electrolysis of Al2O3 at a voltage of 2.5 V. a. How many joules of…

A: We will use the Gibbs energy formula here. Please refer to the below image added answers.

Q: Sodium metal is produced commercially by the electrolysis of molten sodium chloride. The by-product…

A: Sodium metal is commercially produced by electrolysis of molten sodium chloride.  Sodium metal was…

Q: An oxidizing agent is a reactant that

A:

Q: about the copper plating process? a. Copper ions are produced at the anode. b. Copper plating is a…

A: In copper plating,  copper is use to plate a surface.  In electroplating, Electrolysis of CuSO4…

Q: For each reaction, write the chemical formulae of the oxidized reactants in the space provided.…

A:

Q: (24) The gold-plating of a ceramic figurine requires a total of 2.78 g of solid gold. If the current…

A:

Q: Methanol (CH3OH) is used in fuel cells to generate energy and avoid using petroleum products. How…

A: Generally, the combustion of hydrocarbons will give carbon dioxide, water and heat. Combustion…

Q: For each reaction, write the chemical formulae of the oxidized reactants in the space provided.…

A:

Q: Which type of battery is rechargeable? A) alkaline battery C) dry cell B) button battery D) lead…

A: We know that , Primary batteries are non-rechargeable batteries. Example: dry cell,  button battery,…

Q: The lead in a lead-acid battery is used as   a redox reactant   the salt bridge   a place where…

A: Correct answer is : a place where electrons are being stored. Lead is used as anode in the lead-acid…

Q: Which statement best explains the difference between an electrochemical cell and an electrolytic…

A: Electrochemical cell- This cell converts chemical energy to electrical energy.Electrolytic cell-…

Q: Consider the balanced equation representing a reaction occurring in an electrolytic cell: 2NaCl →…

A:

Q: 3. At 900 °C, titanium tetrachloride vapor reacts with molten magnesium metal to form solid titanium…

A: 3. We need to write balanced equation and identify oxidation and reduction.

Q: In the silver and copper galvanic cell, what is being reduced and what is being oxidized? A) The…

A: Given : Galvanic cell of silver and copper.

Q: Define electrolysis. A)Process using chemical energy to cause a nonspontaneous process to occur…

A:

Q: What are the anode and cathode reactions in a lead–acid storage battery? What happens when the…

A: The anode and cathode reactions in a lead-acid storage battery and the battery are recharged, what…

Q: With all other things being equal, in which of the following locations will an iron fence corrode…

A: The solution is given below -

Q: 1. In a Daniel cell, | energy is stored in the zinc rod, the copper rod, and their solutions.…

A: In a Daniel cell, chemical energy is stored in the zinc rod, the copper rod and their solutions.

Q: O Battery used for heart pacemakers, hearing aids, and light meters. O Battery used in flashlights,…

A: To identify: Which is not a button battery.

Q: For each reaction, write the chemical formulae of the oxidized reactants in the space provided.…

A: Answer is explained below. To answer these question we consider the loss of electron and the change…

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

A:

Q: 8. A catalyst is used in a fuel cell to do what? a. Lower the activation energy of the reaction by…

A: Activation energy can be defined as the minimum amount of energy that must be provided to reactants…

Q: a. What is the meaning of corrosion? b. How many types of corrosion can metal be found? (5 types…

A: a) A process of conversion of refined metal into its stabler metal oxides, hydroxide, or sulfide is…

Q: Read the statements. I. The cell needs continuous supply of hydrogen to operate. II. The cell is…

A: Solution :    The fuel cell is a type of voltaic cell that is used for the generation of electrical…

Q: Fuel cells produce carbon dioxide and hydrogen. emit sulfur oxides. are environmentally clean.…

A: A fuel cell is electrochemical that converts the chemical energy of a fuel into electricity through…

Q: When chlorine gas is bubbled through an aqueous solution of NaBr, chloride ions and liquidbromine…

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

Q: Write the cell notation based on the description of the following information: Iron (III) ions are…

A: Given : Iron (III) ions are reduced to iron (II) in presence of platinum i.e Pt electrode. And tin…

Q: hydrogen increases lose reducing agent decreases gain oxygen oxidizing agent electrons Oxidation is…

A: Definition :

Q: In this Chemical equation  2S2O32- (aq) + I2 (aq) —> S4O62- (aq) + 2I- (aq)  with an ON of +2 -2 0…

A:

Q: How does generating electricity chemically differ from other types of electricity generation [Hint:…

A: Electricity is the flow of electrons or charges due to the difference of electric potential between…

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: An electrolytic cell converts: A) Chemical energy into electrical energy B) Chemical energy into…

A: The question is based on the concept of electrochemistry. there are two types of electric cells. One…

Q: How is a fuel cell different from a battery? O A fuel cell never runs out of reactant. O A fuel cell…

A: Fuel cell is an example of electrochemical cell.

Q: O3- is an oxidizing agent  that oxidizes :     KI to I2     I2 to I-     S2O3- to I

A:

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: Which of the following is NOT an advantage in using hydrogen fuel cells rather than gasoline engines…

A: Since the hydrogen fuel cells use hydrogen to react with oxygen forming water and producing energy…

Q: a) A potential reaction being investigated for the generation of energy is the combustion of…

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