When scientists discuss kinetic energy per molecule, the concept being discussed is (a) temperature. (b) heat. (c) thermal energy. (d)entropy. In a mixture of hydrogen gas, oxygen gas, and nitrogen...

When scientists discuss kinetic energy per molecule, the concept being discussed is

(a) temperature.

(b) heat.

(c) thermal energy.

(d)entropy.

In a mixture of hydrogen gas, oxygen gas, and nitrogen gas, the molecules with the greatest average speed are those of

(a) hydrogen.

(b) oxygen.

(c) nitrogen.

(d) All have the same speed.