Determine the average kinetic energy of the translational motion of air gas molecules at a pressure of 10 ^ 5PA.

Air pressure can be calculated using the formula:
p = 2/3 n * E, where p is the air pressure (p = 10 ^ 5 Pa), n is the concentration of air molecules (for normal atmospheric pressure n = 2.65 * 10 ^ 25 m-³), E is the average energy of translational motion of air gases.
Let us express and calculate the average energy of the translational motion of air gases:
E = 3 * p / (2 * n) = 3 * 10 ^ 5 / (2 * 2.65 * 10 ^ 25) = 5.56 * 10 ^ -21 J.
Answer: The average energy of the translational motion of air gases is 5.56 * 10 ^ -21 J.