Question

which defines the average kinetic energy of a systems particles? pressure density temperature volume

Explanation:

In kinetic - theory of gases, temperature is directly related to the average kinetic energy of the particles in a system. Higher temperature means higher average kinetic energy of particles. Pressure is related to the force exerted by particles on the walls of a container, density is mass per unit volume, and volume is the space occupied by the system.

Answer:

temperature