What determines the average kinetic energy of the particles in a gas?

A. the number of collisions

B. the number of particles

C. the size of the particles

D. the temperature

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Option D. The temperature

Explanation:

Average kinetic energy of a gas particle is temperature dependant this implies that an increase in temperature will cause the gas particles to gain more energy hence increasing the average kinetic energy. In contrast when a gas particle is allowed to cool (i. e decrease in temperature), the average kinetic energy of the gas particles will drop. So we can see that the average kinetic energy of gas is determined by the temperature.