Answer: The correct answer is temperature of the gas.
Step-by-step explanation:
Average kinetic energy of the particles is defined as the average of the kinetic energies of all the particles in a gas molecule. The equation used to calculate the average kinetic energy of a gas is given by:

where,
K = kinetic energy of the gas
R = gas constant
T = temperature of the gas
= Avogadro's number
From the above equation, kinetic energy is directly related to the temperature of the gas molecule. As, the temperature of the gas increases, kinetic energy also increases and vice-versa.

Hence, the correct answer is temperature of the gas.