What is the average kinetic energy of any substance at OK 273 A -273 0

The average kinetic energy of any substance at 0 Kelvin (0 K) is zero. This is because temperature is a measure of the average kinetic energy of the particles in a substance. At absolute zero, which is 0 K, the particles have minimal motion and thus their kinetic energy is essentially zero.<br /><br />So, the correct answer is:<br />0