Definition:
Temperature in Kelvin (K) is a direct measure of the average Kinetic Energy of particles.
Conversions
\( T_{(K)} = T_{(^{\circ}C)} + 273.15 \)
Absolute Zero (0 K)
The theoretical temperature where all particle motion stops. It is the lowest possible temperature.
Nature of Science: Models
Models are Simplifications. The Kinetic Molecular Theory assumes gas particles have no volume. This makes math (\(PV=nRT\)) easy but fails at high pressure. Science relies on models that are "useful," not necessarily "perfectly true" in every context.