Unit 3 AOS 2 - Faraday's Law Quiz (4)

What is the difference between discharging and recharging secondary cells?

• Release and restore of energy

• Charging and discharging of energy

• Storing and releasing of energy

• Converting and utilizing of energy

Explain the process of discharging in secondary cells.

• The process of discharging in secondary cells does not involve any chemical reactions.

• The cell is recharged during the discharging process.

• Chemical energy is converted into electrical energy as the cell is used to power a device.

• The cell absorbs electrical energy from the device it is powering.

What are the advantages of using lithium ion batteries?

• High cost, short cycle life, and high self-discharge rate

• High energy density, long cycle life, and low self-discharge rate

• Low energy density, short cycle life, and high self-discharge rate

• Low energy density, long cycle life, and high cost

Discuss the working principle of a lithium ion battery.

• Lithium ions do not move within the battery during charging or discharging.

• The working principle of a lithium ion battery is based on the movement of protons instead of lithium ions.

• Lithium ions move from positive to negative electrode during discharge and from negative to positive electrode during charging.

• Lithium ions move from negative to positive electrode during discharge and from positive to negative electrode during charging.

State Faraday's first law of electrolysis.

• The amount of chemical change produced by an electric current is inversely proportional to the quantity of electricity used.

• The amount of chemical change produced by an electric current is not related to the quantity of electricity used.

• The amount of chemical change produced by an electric current is only proportional to the type of chemical being used.

• The amount of chemical change produced by an electric current is proportional to the quantity of electricity used.

Explain the relationship between the amount of substance deposited and the quantity of electricity passed during electrolysis, according to Faraday's first law.

• The amount of substance deposited is directly proportional to the quantity of electricity passed.

• The amount of substance deposited is proportional to the square of the quantity of electricity passed.

• The amount of substance deposited is not related to the quantity of electricity passed.

• The amount of substance deposited is inversely proportional to the quantity of electricity passed.

What is Faraday's second law of electrolysis?

• The amount of chemical change produced by an electric current is inversely proportional to the quantity of electricity used.

• The amount of chemical change produced by an electric current is only proportional to the type of chemical being used.

• The amount of chemical change produced by an electric current is not related to the quantity of electricity used.

• The amount of chemical change produced by an electric current is proportional to the quantity of electricity used.

Describe how the mass of a substance deposited during electrolysis is related to the quantity of electricity passed, as per Faraday's second law.

• Indirectly proportional

• No relation

• Exponentially proportional

• Directly proportional

How do hydrogen fuel cells work?

• Converting carbon dioxide into electricity

• Converting hydrogen and oxygen into electricity

• Using solar energy to split water into hydrogen and oxygen

• Burning hydrogen to produce heat

Discuss the advantages of using hydrogen fuel cells as an alternative energy source.

• Negative impact on the environment, expensive to produce, difficult to store

• Low energy output, unreliable technology, limited availability

• Zero emissions, high efficiency, versatile applications

• High emissions, low efficiency, limited applications