Question 23
Structure of Matter and Kinetic TheoryOne valid assumption of the kinetic theory of gases is that
- A.the molecules of a gas and constantly in state of motion and the number of collisions remain constant
- B.the number of molecules of gas increases with increasing pressure
- C.as the temperature increases, the number of collisions made by the gas molecules remain constant
- D.the molecules of gas are all identical and are very small in size
Show the answer and explanation
Answer: D (the molecules of gas are all identical and are very small in size)
Explanation
Kinetic theory assumes a gas is made of identical molecules that are tiny compared with the distances between them.