9.6 Galvanic (Voltaic) and Electrolytic Cells

• Galvanic cells convert the chemical energy of a spontaneous redox reaction into electrical energy
• Steps in the operation of a galvanic cell:

  1️⃣ Oxidation occurs at the anode

  2️⃣ Reduction occurs at the cathode

  3️⃣ Electrons flow through external circuit

  4️⃣ Ions flow through salt bridge
• In an electrolytic cell, the anode is positively charged
• Galvanic cells require an external voltage to function.

  False
• In a Galvanic Cell, the redox reaction is spontaneous
• In an Electrolytic Cell, the energy conversion is from electrical to chemical
• Match the cell type with its characteristic:

  Galvanic Cell ↔️ Spontaneous redox reaction

  Electrolytic Cell ↔️ Non-spontaneous redox reaction
• The salt bridge in a Galvanic Cell allows electrons to flow between half-cells.

  False
• What is the charge of the anode in an Electrolytic Cell?

  Positive
• Match the cell type with its energy conversion:

  Galvanic Cell ↔️ Chemical to Electrical

  Electrolytic Cell ↔️ Electrical to Chemical
• In a galvanic cell, the anode is negatively charged
• Electrolytic cells convert chemical energy into electrical energy.

  False
• Galvanic cells convert chemical energy into electrical energy
• The anode in a Galvanic Cell is positively charged.

  False
• The cathode in an Electrolytic Cell is positively charged.

  False
• What is the role of the salt bridge in a Galvanic Cell?

  Maintain electrical neutrality
• What is another name for a Galvanic Cell?

  Voltaic Cell
• An Electrolytic Cell requires an external voltage to operate.

  True
• What is the charge of the cathode in a Galvanic Cell?

  Positive
• What type of energy conversion occurs in a Galvanic Cell?

  Chemical to electrical
• Galvanic cells use a salt bridge to maintain electrical neutrality
• Steps in the operation of a Galvanic Cell

  1️⃣ Oxidation occurs at the anode.

  2️⃣ Electrons flow through an external circuit.

  3️⃣ Reduction occurs at the cathode.

  4️⃣ Salt bridge maintains electrical neutrality.
• In cell notation, the anode is written on the left
• Electrochemical devices convert the chemical energy of a spontaneous redox reaction into electrical
• Galvanic cells, also called voltaic cells, use a spontaneous redox reaction to generate electrical
• Electrolytic cells convert electrical energy into chemical
• What is the charge of the anode in a galvanic cell?

  Negative
• What is the role of the salt bridge in a galvanic cell?

  Balance charge
• Order the components of a cell notation from left to right:

  1️⃣ Anode

  2️⃣ Anode Electrolyte

  3️⃣ Salt Bridge

  4️⃣ Cathode Electrolyte

  5️⃣ Cathode
• What is the sign of $\Delta G$ for a nonspontaneous reaction?


  Positive
• The salt bridge in a galvanic cell is represented by ||.


  True
• What is the value of $\Delta G$ for a non-spontaneous reaction?


  $\Delta G > 0$
• Galvanic cells convert chemical energy into electrical
• The cathode in a galvanic cell has a positive
• What is the charge of the anode in an electrolytic cell?

  Positive
• In a Galvanic Cell, the spontaneous redox reaction generates an electrical current
• Galvanic cells consist of two key components: electrodes and a salt bridge.


  True
• What is the role of the salt bridge in a Galvanic Cell?

  Maintains electrical neutrality
• Cell notation begins with the anode and ends with the cathode.


  True
• A reaction is spontaneous if $\Delta G$ is negative.