Third law of thermodynamics

The Third law of thermodynamics says:

• If an object reaches the absolute zero of temperature (0 K = -273,15C = −459.67 °F), its atoms will stop moving.

The statement is: At absolute zero, the entropy of a perfectly crystalline substance is zero.

Experimentally, it is not possible to obtain -273.15°C. It is found that most of the gases either liquify or solidify before reaching such a temperature, gaseous molecules no longer remaining.

Other pages

• Zeroth law of thermodynamics
• First law of thermodynamics
• Second law of thermodynamics