The molecular diameter of CH4 is approximately 0.414 nm. At 400 K and 67 kPa,
1. Calculate the number of methane molecules colliding per cubic meter per second.
2. Calculate the number of CH4 molecules colliding per cubic centimeter per second.
3. Calculate the mean path in nm units.
4. Compare and discusses the results obtained in (1) and (2).
5. Describe the significance of the result obtained in (3), i.e., explain how does the mean free path compare with the diameter of methane molecule?
6. Which factor: T or p, will affect the number of molecular collisions, most significantly?