Voltaic and Electrolytic Cells Concepts

The video tutorial compares and contrasts voltaic and electrolytic cells. Voltaic cells have spontaneous reactions, converting chemical energy into electricity, while electrolytic cells have non-spontaneous reactions, converting electrical energy into chemical energy. Both cell types involve oxidation at the anode and reduction at the cathode, with electrons moving from anode to cathode. Voltaic cells often involve aqueous solutions, whereas electrolytic cells frequently use molten salts. Diagrams can help identify cell types, with voltmeters indicating voltaic cells and power supplies indicating electrolytic cells.

What is a key difference between voltaic and electrolytic cells?

• Electrolytic cells produce electricity.

• Voltaic cells require a power supply.

• Electrolytic cells have a positive cell potential.

• Voltaic cells have spontaneous reactions.

In a voltaic cell, what type of energy is converted into electricity?

• Nuclear energy

• Mechanical energy

• Chemical potential energy

• Thermal energy

Which of the following is true about electrolytic cells?

• They convert chemical energy into electrical energy.

• They produce a voltage.

• They have spontaneous reactions.

• They require a power supply.

What happens at the anode in both voltaic and electrolytic cells?

• Reduction occurs

• Cations move towards it

• Oxidation occurs

• Electrons are gained

In both cell types, where does the gain of electrons occur?

• Salt bridge

• Electrolyte

• Cathode

• Anode

What is a common feature of the movement of ions in both cell types?

• Cations remain stationary

• Anions move to the anode

• Cations move to the anode

• Anions move to the cathode

Which type of electrode is more commonly found in electrolytic cells?

• Silver electrode

• Inert electrode

• Copper electrode

• Zinc electrode

What symbol in a diagram indicates a voltaic cell?

• A box labeled 'power supply'

• A V with a circle around it

• A battery symbol

• A lightning bolt

What does a power supply symbol in a diagram suggest?

• Presence of a fuel cell

• Presence of a voltaic cell

• Presence of an electrolytic cell

• Presence of a galvanic cell

What is the main difference in energy conversion between voltaic and electrolytic cells?

• Electrolytic cells convert thermal energy into electrical energy.

• Voltaic cells convert chemical energy into electrical energy.

• Electrolytic cells convert chemical energy into electrical energy.

• Voltaic cells convert electrical energy into chemical energy.