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Key Terms
Thermal Energy (Internal Energy, ΔU)
The energy of all the particles within a system (all their kinetic and potential energy).
Temperature
A measure of the translational kinetic energy of the particles in a system.
Heat
The of thermal energy between objects due to a temperature difference; energy in transit.
Kelvin
An temperature scale where 0 K is absolute zero, meaning molecular motion theoretically stops.
Ideal Gas Law
The equation PV=nRT (or PV=NkT) that relates the macroscopic properties of an gas.
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