9.73 part d: if delta S is greater than 0, why is the reaction spontaneous






Moderators: Chem_Mod, Chem_Admin

Josephine Lu 4L
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am

9.73 part d: if delta S is greater than 0, why is the reaction spontaneous

Postby Josephine Lu 4L » Fri Feb 22, 2019 1:10 pm

If delta S of the reaction is positive, why will the reaction be spontaneous?

Celine Cheng 1H
Posts: 33
Joined: Fri Sep 28, 2018 12:21 am
Been upvoted: 1 time

Re: 9.73 part d: if delta S is greater than 0, why is the reaction spontaneous

Postby Celine Cheng 1H » Fri Feb 22, 2019 3:49 pm

When looking at delta G = delta H - T delta S, since T is positive, if delta S is positive as well, as long as (T delta S) is greater than delta H, delta G would be negative and it's spontaneous. Also, things generally want to have greater entropy.

Madeline Motamedi 4I
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: 9.73 part d: if delta S is greater than 0, why is the reaction spontaneous

Postby Madeline Motamedi 4I » Sun Feb 24, 2019 3:06 am

Like the comment above, use the general equation for delta T= delta H - T times delta S. Plugging in known values into this equation will help you determine whether you have a positive or negative delta G. From there you can determine whether its spontaneous or not.


Return to “Gibbs Free Energy Concepts and Calculations”

Who is online

Users browsing this forum: No registered users and 1 guest