Page 1 of 1

deltaG=0, Phases Coexist ?

Posted: Sat Feb 10, 2018 8:13 pm
by Kyle Sheu 1C
When, for example, Br2(l) --> Br2(g), it is said that at the boiling point, the liquid and gaseous phases are in equilibrium and coexist. How would we visualize the "coexistence" of two different phases?

^I understand this concept in terms of spontaneity but am unsure of what it means in terms of molecular interactions.

Re: deltaG=0, Phases Coexist ?

Posted: Sat Feb 10, 2018 8:42 pm
by Cynthia Tsang
Some are liquid particles and loosely bound together and others are gaseous and flowing throughout the mixture.

Re: deltaG=0, Phases Coexist ?

Posted: Sat Feb 10, 2018 8:45 pm
by Tiffany 1B
Hi,
Yeah so since at boiling point the particles don't have a higher tendency to go to liquid over gas or vice versa, you could just imagine some particles as gas and others as a liquid at this point. Hope that helps.