The universal gas constant, denoted as 'r', is a fundamental constant in physical chemistry that relates the energy scale to the temperature scale in the ideal gas law. It appears in various equations involving gases and plays a crucial role in connecting pressure, volume, temperature, and the number of moles of a gas. Understanding 'r' is essential when applying the Nernst equation, as it helps quantify how changes in temperature and concentration affect electrochemical potentials.
congrats on reading the definition of r (universal gas constant). now let's actually learn it.