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Questions and Answers
What is the maximum amount of electrical energy that can be obtained in a reversible chemical process?
What is the maximum amount of electrical energy that can be obtained in a reversible chemical process?
- Wmax
- ΔG
- nF
- Welec (correct)
What is the primary function of an electrochemical cell?
What is the primary function of an electrochemical cell?
- To convert chemical energy into electrical energy or vice versa (correct)
- To convert electrical energy into mechanical energy
- To convert mechanical energy into thermal energy
- To convert thermal energy into chemical energy
What is the relationship between the free energy change and the electrode potential?
What is the relationship between the free energy change and the electrode potential?
- ΔG = -nFE (correct)
- ΔG = 1/-nFE
- ΔG = 1/nFE
- ΔG = nFE
What occurs at the anode in an electrochemical cell?
What occurs at the anode in an electrochemical cell?
What is the unit of the Faraday constant?
What is the unit of the Faraday constant?
What is the charge of the cathode in an electrochemical cell?
What is the charge of the cathode in an electrochemical cell?
What is the energy available to do work in a spontaneous reaction?
What is the energy available to do work in a spontaneous reaction?
What is the relationship between the maximum work available and the maximum amount of electrical energy that can be obtained?
What is the relationship between the maximum work available and the maximum amount of electrical energy that can be obtained?
What type of reaction occurs at the cathode in an electrochemical cell?
What type of reaction occurs at the cathode in an electrochemical cell?
What is the number of electrons involved in the reaction?
What is the number of electrons involved in the reaction?
What is the term for the loss of electrons or an increase in oxidation state by a molecule, atom, or ion?
What is the term for the loss of electrons or an increase in oxidation state by a molecule, atom, or ion?
How many kinds of electrochemical cells are mentioned in the text?
How many kinds of electrochemical cells are mentioned in the text?
What is the formula for the EMF of a concentration cell?
What is the formula for the EMF of a concentration cell?
What is the reason for the absence of E0 in the Nernst equation of a concentration cell?
What is the reason for the absence of E0 in the Nernst equation of a concentration cell?
What is the term for the potential of a single electrode?
What is the term for the potential of a single electrode?
What is the purpose of a calomel electrode in electrochemistry?
What is the purpose of a calomel electrode in electrochemistry?
What is the characteristic of a galvanic cell?
What is the characteristic of a galvanic cell?
What is the purpose of an ion selective electrode?
What is the purpose of an ion selective electrode?
What material is used in the positive electrode of a lithium-ion battery?
What material is used in the positive electrode of a lithium-ion battery?
What happens during the charging of a lithium-ion battery?
What happens during the charging of a lithium-ion battery?
What is the purpose of the separator in a lithium-ion battery?
What is the purpose of the separator in a lithium-ion battery?
What is the composition of the negative electrode in a lithium-ion battery?
What is the composition of the negative electrode in a lithium-ion battery?
What is the function of the electrolyte in a lithium-ion battery?
What is the function of the electrolyte in a lithium-ion battery?
What is the advantage of lithium-ion batteries over pure lithium-based batteries?
What is the advantage of lithium-ion batteries over pure lithium-based batteries?
What is the rate at which a battery loses power over time called?
What is the rate at which a battery loses power over time called?
What is a characteristic of modern batteries?
What is a characteristic of modern batteries?
What type of battery is more environmentally friendly than Ni-Cd batteries?
What type of battery is more environmentally friendly than Ni-Cd batteries?
What is a disadvantage of Ni-MH2 batteries?
What is a disadvantage of Ni-MH2 batteries?
What is a common feature of Nickel-metal hydride and Ni-Cd batteries?
What is a common feature of Nickel-metal hydride and Ni-Cd batteries?
What is the metal used in the assembly of Al-air batteries?
What is the metal used in the assembly of Al-air batteries?
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