1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Is this the correct explanation? (phase equilibria)

  1. Jan 17, 2016 #1


    User Avatar

    1. The problem statement, all variables and given/known data
    Given the following reaction that has reached equilibrium: NaCl(s)←→NaCl(aq).
    For the phase equilibrium to exist, the NaCl(aq) must be a solution that is

    A. concentrated
    B. saturated
    C. dilute
    D. heated
    E. unsaturated

    2. Relevant equations

    3. The attempt at a solution
    I chose B. My explanation is that the scenario is a block of salt is put into a beaker of water. The equilibrium exists when the solution is saturated so the remaining block cannot dissolve anymore and will stay solid. Is this the correct explanation? I am making sure because I have never seen a question like this before. Thank you very much!
  2. jcsd
  3. Jan 17, 2016 #2


    User Avatar

    I am sorry about the misleading topic of the thread, I typed the wrong thing in.

    *Ignore this, I just saw how to edit the title.
  4. Jan 17, 2016 #3


    User Avatar

    Staff: Mentor

    Yes, B it is. If the solution is not saturated, solid NaCl can't exist in the equilibrium with the solution - it will dissolve (until solution saturates).
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted