change in entropy

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AMahadi
Posts: 93
Joined: Thu Jul 11, 2019 12:17 am

change in entropy

Postby AMahadi » Thu Feb 13, 2020 3:10 pm

Change in entropy must be smaller than zero, for the entropy to decrease? If so, why?

chrisleung-2J
Posts: 112
Joined: Fri Aug 09, 2019 12:17 am
Been upvoted: 1 time

Re: change in entropy

Postby chrisleung-2J » Thu Feb 13, 2020 4:49 pm

If delta S is less than zero, this means that the system is becoming more ordered through the process, thereby decreasing entropy.

Alicia Lin 2F
Posts: 83
Joined: Wed Sep 18, 2019 12:17 am

Re: change in entropy

Postby Alicia Lin 2F » Thu Feb 13, 2020 4:53 pm

In general, if the change in anything is less than 0, it indicates a decrease in this property. It's the same concept as for change in enthalpy, Gibbs free energy, temperature, etc.

305385703
Posts: 102
Joined: Thu Jul 11, 2019 12:15 am

Re: change in entropy

Postby 305385703 » Sun Feb 16, 2020 8:34 pm

delta S means the change in the disorder of a system. If a system gets more ordered, then the entropy change is positive

Jessica Katzman 4F
Posts: 35
Joined: Mon Jun 17, 2019 7:24 am

Re: change in entropy

Postby Jessica Katzman 4F » Sun Feb 16, 2020 8:53 pm

Because delta S is measures the change in disorder, a delta S value less than zero signifies a decrease in entropy for the whole system.

Eesha Chattopadhyay 2K
Posts: 104
Joined: Fri Aug 09, 2019 12:16 am

Re: change in entropy

Postby Eesha Chattopadhyay 2K » Sun Feb 16, 2020 8:55 pm

Delta S is the measure of the entropy of a system, this means that a negative value would mean that the system becomes more orderly as a result of that process.

WGaines_2E
Posts: 47
Joined: Mon Nov 18, 2019 12:18 am

Re: change in entropy

Postby WGaines_2E » Tue Mar 10, 2020 8:39 pm

entropy is a measure of disorder, so an entropy below 0 means the reaction proceeds in a manner that leads to more order

Anish Natarajan 4G
Posts: 51
Joined: Thu Jul 25, 2019 12:16 am

Re: change in entropy

Postby Anish Natarajan 4G » Thu Mar 12, 2020 4:25 pm

If deltaS is less than 0, then that means that the overall change in entropy is negative--implying a decrease in spontaneity


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