Absolute zero, temperature at which a thermodynamic system has the lowest energy. It corresponds to −273.15 °C on the Celsius temperature scale and to −459.67 °F on the Fahrenheit temperature scale. At absolute zero; the particles stop moving but will have some energy. Molecules and atoms of matter showcase minimum vibration motion by retaining only quantum mechanical, zero-point energy-induced particle motion. The lowest hypothetical or imaginary temperature at which gases are supposed to occupy zero volume is absolute zero and volume of the gas at −273.15∘C becomes zero i.e. gas does not exist at this temperature.