Chapter 11.2, Problem 11.1CC

Shown here is a representation of a closed container in which you have just placed 10 L of H₂O. In our experiment, we are going to call this starting point in time t = 0 and assume that all of the H₂O is in the liquid phase. We have represented a few of the H₂O molecules in the water as dots.

1. a Consider a time t = 1, at which some time has passed but the system has not reached equilibrium.
   1. i. How will the level of the liquid H₂O compare to that at t = 0?
   2. ii. How will the vapor pressure in the flask compare to that at t = 0?
   3. iii. How will the number of H₂O molecules in the vapor state compare to that at t = 0?
   4. iv. How does the rate of evaporation in this system compare to the rate of condensation?
   5. v. Draw a picture of the system at t = 1.
2. b Consider a time t = 2, at which enough time has passed for the system to reach equilibrium.
   1. i. How will the level of the liquid H₂O compare to that at t = 1?
   2. ii. How will the vapor pressure in the flask compare to that at t = 1?
   3. iii. How will the number of H₂O molecules in the vapor state compare to that a t = 1?
   4. iv. How does the rate of evaporation in this system compare to the rate of condensation?
   5. v. Draw a picture of the system at t = 2.