The Zeroth Law of Thermodynamics states that if two systems are in thermal equilibrium with a third system, then they are also in thermal equilibrium with each other. This fundamental principle establishes a foundation for the concept of temperature and allows for the comparison of thermal states among different systems. By introducing the notion of thermal equilibrium, this law is crucial in understanding how energy is transferred in thermodynamic processes, especially within high energy density matter.
congrats on reading the definition of Zeroth Law of Thermodynamics. now let's actually learn it.