K values

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K values

Postby 505316964 » Thu Jan 09, 2020 11:26 am

I know that when K is less than 10^-3 it favors the reacts,

but how strict is this cut off? if K is a little more than 10^-3 is it close enough to 10^-3 that it still favors the reactants? or does it favor neither products or reactants?

Posts: 33
Joined: Wed Nov 20, 2019 12:21 am

Re: K values

Postby 805329408 » Thu Jan 09, 2020 11:28 am

I believe that if K< 10^-3 than the reaction STRONGLY favors reactants, but if it is greater than this cutoff, it still favors reactants but not strongly? The same goes for if K> 10^3, the reaction strongly favors products but if under the cutoff, then it still favors products but not strongly.

Vinita Saxena 2I
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Joined: Fri Aug 09, 2019 12:16 am

Re: K values

Postby Vinita Saxena 2I » Thu Jan 09, 2020 11:45 am

If it is greater than 10^-3 but less than 1 it slightly favors the reactants, but not strongly.

Gabriella Bates 2L
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Joined: Thu Jul 11, 2019 12:15 am

Re: K values

Postby Gabriella Bates 2L » Thu Jan 09, 2020 12:54 pm

When K is less than 10^-3, we can say with certainty that the reaction strongly favors reactants. However when K is between 10^-3 and 1, the concentration of the reactants will be slightly higher than the concentration of the products. Therefore, I would assume that the reaction slightly favors the reactants, but not as strongly as when K is less than 10^-3. Similar reasoning can be applied for the formation of products when K is between 1 and 10^3.
Last edited by Gabriella Bates 2L on Sun Jan 12, 2020 12:04 pm, edited 1 time in total.

Joanne Lee 1J
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Joined: Thu Jul 25, 2019 12:15 am

Re: K values

Postby Joanne Lee 1J » Thu Jan 09, 2020 1:02 pm

If the K value is between 10⁻³ and 10³ then it SLIGHTLY favors either the product or reactant, depending on if it is bigger or smaller than one.

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