Consider a sample of N₂ gas under conditions in which it obeys the ideal gas law exactly. Which of these statements is true?

(a) A sample of Ne(g) under the same conditions must obey the ideal gas law exactly.

(b) The speed at which one particular N₂ molecule is moving changes from time to time.

(c) Some N₂ molecules are moving more slowly than some of the molecules in a sample of O₂(g) under the same conditions.

(d) Some N₂ molecules are moving more slowly than some of the molecules in a sample of Ne(g) under the same conditions.

(e) When two N₂ molecules collide, it is possible that both may be moving faster after the collision than they were before.