Walther Hermann Nernst was a German physical chemist known for his work in thermodynamics, physical chemistry, electrochemistry, and solid-state physics. His formulation of the Nernst heat theorem helped pave the way for the third law of thermodynamics, for which he won the 1920 Nobel Prize in Chemistry. He is also known for developing the Nernst equation in 1887. The Nobel Prize in Chemistry 1920, announced November 10, 1921. Walther Nernst, “in recognition of his work in thermochemistry”. Walther Nernst: born 1864, Briesen, Prussia (now Wąbrzeźno, Poland). Wiki link Data: the Nobel Foundation (CC0).