Thermodynamic Stability

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Ryan Chang 1C
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Joined: Sat Aug 24, 2019 12:17 am

Thermodynamic Stability

Postby Ryan Chang 1C » Mon Jan 13, 2020 5:06 pm

How do we determine if K, Cl2, of F2, is thermodynamically more stable in problem 5I.13?

Daria MacAuslan 1H
Posts: 50
Joined: Sat Aug 17, 2019 12:16 am

Re: Thermodynamic Stability

Postby Daria MacAuslan 1H » Mon Jan 13, 2020 6:01 pm

Cl2 is more thermodynamically stable than F2 because of its smaller K vale, or equilibrium constant. This also means that it is going to dissociate less totally than F2 into singular atoms, which in turn makes it more stable (since it wants to stay in its original state of a diatomic molecule).

AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

Re: Thermodynamic Stability

Postby AKatukota » Mon Jan 13, 2020 6:27 pm

It will be more thermodynamically stable if it has a smaller K.

alicechien_4F
Posts: 104
Joined: Sat Jul 20, 2019 12:15 am

Re: Thermodynamic Stability

Postby alicechien_4F » Mon Jan 13, 2020 7:04 pm

A molecule is more thermodynamically stable if it has a smaller K value. The smaller the K value, the less product there is relative to reactant. That means the reactant (in this case, Cl2 and F2) will dissociate less and remain as reactants.

Caroline Zepecki
Posts: 101
Joined: Fri Aug 09, 2019 12:16 am

Re: Thermodynamic Stability

Postby Caroline Zepecki » Wed Jan 15, 2020 1:35 pm

Smaller K value -> more thermodynamically stable

805307623
Posts: 99
Joined: Fri Aug 09, 2019 12:17 am

Re: Thermodynamic Stability

Postby 805307623 » Thu Jan 16, 2020 3:07 pm

The more stable a system is, the lower the potential energy of it is. Chemical processes usually occur because they are thermodynamically favorable, meaning they go from high energy(less stable) to low energy(more stable).

HuyHa_2H
Posts: 100
Joined: Wed Sep 11, 2019 12:15 am

Re: Thermodynamic Stability

Postby HuyHa_2H » Sat Jan 18, 2020 2:43 pm

You just look at the K value and compare them. Smaller K values indicate more thermodynamical stability and the opposite if the K value is bigger.


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