Mean free path

Exercise and reference answers

Questions

1. Question

   The mean free path is the average distance

   Choices

   1. A molecule travels per second
   2. Between two successive collisions
   3. From wall to wall

   Correct choice

   Between two successive collisions

2. Question

   It is written with the symbol

   Choices

   1. P
   2. T
   3. l

   Correct choice

   l

3. Question

   Compared with liquids, in gases molecules are

   Choices

   1. Much freer
   2. More tightly held
   3. Fixed in place

   Correct choice

   Much freer

4. Question

   Which quantity does it describe?

   Choices

   1. An energy
   2. A distance
   3. A pressure

   Correct choice

   A distance

Instructions

Tap the chip that answers each prompt.

Explanation