A physics professor from the Universidad de Sevilla (University of Seville) has tackled a problem in thermodynamics that has been around for more than a century, offering a new proof that also challenges an idea once put forward by Albert Einstein.
José María Martín Olalla’s study, published in The European Physical Journal Plus, focuses on the Nernst heat theorem. This theorem, first stated in 1905, says that as temperature gets closer to absolute zero, the exchange of entropy (a measure of disorder) also gets closer to zero.
In his paper, Martín Olalla shows that the theorem can be proven using only the second law of thermodynamics, which says that the entropy of the universe always increases.

