1. What is the relationship between Gibbs free energy and equilibrium constant for a reaction?
    • A) ΔG = -RT ln K
    • B) ΔG = RT ln K
    • C) ΔG = -K/RT
    • D) ΔG = K/RT
    • Answer: A) ΔG = -RT ln K
  2. What type of reaction occurs at the anode of an electrolytic cell?
    • A) Oxidation
    • B) Reduction
    • C) Neutralization
    • D) Precipitation
    • Answer: A) Oxidation
  3. The cell potential for a redox reaction under non-standard conditions can be calculated using:
    • A) The Nernst equation
    • B) The Faraday constant
    • C) The Gibbs free energy equation
    • D) The standard reduction potential
    • Answer: A) The Nernst equation
  4. The Faraday constant represents the charge of:
    • A) One mole of ions
    • B) One mole of atoms
    • C) One mole of electrons
    • D) One mole of molecules
    • Answer: C) One mole of electrons
  5. The equilibrium constant for a redox reaction is related to:
    • A) The cell potential and temperature
    • B) The temperature and concentration
    • C) The reaction rate and concentration
    • D) The standard cell potential and concentration
    • Answer: A) The cell potential and temperature
  6. Which of the following correctly describes the behavior of a standard hydrogen electrode?
    • A) It has a standard reduction potential of +1.00 V
    • B) It has a standard reduction potential of 0.00 V
    • C) It is used to measure oxidation potentials
    • D) It is not used in electrochemical measurements
    • Answer: B) It has a standard reduction potential of 0.00 V
  7. The cell potential of a galvanic cell can be affected by:
    • A) Changing the type of electrode
    • B) Changing the concentration of the solutions
    • C) Changing the temperature
    • D) All of the above
    • Answer: D) All of the above
  8. Which of the following metals has the highest standard reduction potential?
    • A) Lithium
    • B) Sodium
    • C) Gold
    • D) Zinc
    • Answer: C) Gold
  9. The term “electrolysis” refers to:
    • A) The process of using electricity to drive a non-spontaneous chemical reaction
    • B) The process of using chemicals to drive an electrical reaction
    • C) The process of separating ions in a solution
    • D) The process of measuring cell potential
    • Answer: A) The process of using electricity to drive a non-spontaneous chemical reaction
  10. What is the main application of a fuel cell?
    • A) To store electrical energy
    • B) To convert chemical energy into electrical energy
    • C) To separate chemical compounds
    • D) To measure the efficiency of reactions
    • Answer: B) To convert chemical energy into electrical energy
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