Thermal Equilibrium and the First Law of Thermodynamics
When two systems stop exchanging heat, and how energy is conserved in thermal processes.
Thermal Equilibrium and the Zeroth Law
Two systems are in thermal equilibrium when no net heat flows between them — they are at the same temperature. The Zeroth Law states that if two systems are each in equilibrium with a third, they are in equilibrium with each other.
First Law of Thermodynamics
ΔQ = ΔU + ΔW
Heat supplied to a system equals the increase in its internal energy plus the work done by the system — a statement of conservation of energy.
Lesson 23 of 31