ΔU = Q + W (First Law of Thermodynamics Equation)

Definition

This equation represents the first law of thermodynamics which states that the change in internal energy (ΔU) is equal to the heat added to a system (Q) plus the work done by or on the system (W).

Related terms

Heat Transfer:

The process by which thermal energy is exchanged between objects due to temperature differences.

Work Done: The transfer of mechanical energy from one object to another through applied forces.

Internal Energy:

The total potential and kinetic energies within a system.