Decide which of the following statements are true and which are
false.
1. As temperature decreases, the average kinetic energy of a
sample of gas molecules decreases.
2. At constant temperature, the lighter the gas molecules, the
smaller the average kinetic energy.
3. At constant temperature, the heavier the gas molecules, the
smaller the average velocity.
4. In order for two separate 1.0 L samples of O2(g) and H2(g) to
have the same average velocity, the H2(g) sample must be...