Keq can be very large compared to 1.......what does this mean?

[Toothguy80]

Can someone give me the scoop on Keq?

All I know is that if
Keq>1 => more products
...<1 => more reactants
...=1 => equal reactants

But in this question, it says that it's a characteristic of a given system at a given temperature, and it can be very large compared to 1.

What does this mean?

---

Members don't see this ad.

 

[UJ007]

Can someone give me the scoop on Keq?

All I know is that if
Keq>1 => more products
...<1 => more reactants
...=1 => equal reactants

But in this question, it says that it's a characteristic of a given system at a given temperature, and it can be very large compared to 1.

What does this mean?

Keq just tells you what will be favoured at equilibrium. Since Keq = [products]/[reactants] a large value of k (k>>1) means the reaction will favour the products a lot more, meaning when the reaction reached equilibrium you will have mostly products.
when its the oppsite (k<<1) then you will have a lot more product at equilibrium and when k=0 you have the same amount of product and reactant at equilibrium.
It is constant for a given temp. Adding/ removing product or reactant won't change anything since LeChateliers principle will cause it to return to the equilibrium point.
Does this help? What exactly about keq do you not understand?

 

[levyusupov]

whatevr you know is what they explained, they just paraphraised it. also, just dont forget that only temp can change the Keq !!!!!!!!

 

[Nasem]

whatevr you know is what they explained, they just paraphraised it. also, just dont forget that only temp can change the Keq !!!!!!!!

not exactly true.... changing the amount of reactants or products will also change keq

 

[Dotoday]

Can someone give me the scoop on Keq?

All I know is that if
Keq>1 => more products
...<1 => more reactants
...=1 => equal reactants

But in this question, it says that it's a characteristic of a given system at a given temperature, and it can be very large compared to 1.

What does this mean?

I believe in this example, they are trying to say that temperature can push Keg to the value of greater than 1. Meaning if you increase the temperature (depending on the reaction) there is a greater chance that you will have more products than reactants and therefore will increase the value of K.
Does this help? Good luck.