Lecture
This lecture by the instructor covers the principles of fuel cells, focusing on the thermodynamics involved in the conversion of hydrogen into electricity. The lecture explains the operation of a fuel cell, detailing the reactions at the anode and cathode, as well as the overall reaction. It discusses the variables affecting the reaction, such as standard enthalpy, entropy, and free enthalpy. The concept of reversible and irreversible cases in fuel cells is also explored, highlighting the impact on entropy and heat exchange with the environment. The conclusion summarizes the key points discussed throughout the lecture.