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Postby 605168557 » Wed Feb 13, 2019 11:15 pm

How can you tell when a molecule is more stable given the equilibrium constant? The textbook uses the reasoning that a larger equilibrium constant (for example F2 in comparison to Cl2) to explain that Cl2 is more stable relative to its atoms @ 1000K and I was wondering if someone could explain that a little further

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Re: Stability

Postby Mukil_Pari_2I » Thu Feb 14, 2019 1:17 am

If the equilibrium constant is larger than 1, that means product formation is favored. If the formation of something is favored, it usually means its the more stable molecule.

Sarah Kiamanesh 1D
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Re: Stability

Postby Sarah Kiamanesh 1D » Thu Feb 14, 2019 10:15 am

the equilibrium constant is a ratio between concentration of products and reactants. if this value is greater than one, that means the numerator (products) are more prevalent, indicating that they are more stable. On the other hand, if this value is less than one, then the denominator (reactants) are more substantial, and they are more stable than the products

Simon Dionson 4I
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Re: Stability

Postby Simon Dionson 4I » Thu Jan 09, 2020 8:58 pm

You can also look at the product formed. F2 -> 2F has more atoms formed than Cl2 -> 2Cl, F atoms form more than Cl atoms at the same conditions, so they are more stable.

Kevin Xu 4F
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Re: Stability

Postby Kevin Xu 4F » Mon Jan 13, 2020 1:35 am

I think the stability of a reaction also has to do with how naturally favored it is to incline to either the products or the reactants. Say the products are more stable than the reactants. Then that means that it would require less energy to form the products than the reactants, hence why the reaction would be product favored and this reasoning could be used viced versa as well.

Aarushi Solanki 4F
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Re: Stability

Postby Aarushi Solanki 4F » Mon Jan 13, 2020 9:02 am

If the forward reaction (more product produced) is naturally favored, then the product is more stable.
If the reverse reaction (more reactant produced) is naturally favored, then the product is more stable.

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