Temperature affecting Keq

[shiftypoptart]

So i was watching chads videos and chads keeps saying that temperature is the only thing that affects Keq but never explains whether increasing or decreasing temperature, increases or decreases Keq. So heres what I understand:

By raising temp you shift an exothermic reaction to the left therefore K<Q In this case raising temp would Lower Keq then? However in an endothermic reaction raising temp would shift equilibrium right therefore K>Q In this case raising temperature would raise Keq?

All in all I wanna know is HOW temperature changes affect Keq and if its dependent on whether the reaction is endothermic or exothermic. Please correct me if I'm wrong.

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[UnimaasMED]

So i was watching chads videos and chads keeps saying that temperature is the only thing that affects Keq but never explains whether increasing or decreasing temperature, increases or decreases Keq. So heres what I understand:

By raising temp you shift an exothermic reaction to the left therefore K<Q In this case raising temp would Lower Keq then? However in an endothermic reaction raising temp would shift equilibrium right therefore K>Q In this case raising temperature would raise Keq?

All in all I wanna know is HOW temperature changes affect Keq and if its dependent on whether the reaction is endothermic or exothermic. Please correct me if I'm wrong.

What you are describing is when you add heat. My understanding is that if you increase the temperature you increase the likelihood that the reactants will meet and depending on number of moles and concentration of reactants versus products, it will decrease or increase Keq.
Somebody correct me if I am wrong.

 

[Ibracadabra]

So i was watching chads videos and chads keeps saying that temperature is the only thing that affects Keq but never explains whether increasing or decreasing temperature, increases or decreases Keq. So heres what I understand:

By raising temp you shift an exothermic reaction to the left therefore K<Q In this case raising temp would Lower Keq then? However in an endothermic reaction raising temp would shift equilibrium right therefore K>Q In this case raising temperature would raise Keq?

All in all I wanna know is HOW temperature changes affect Keq and if its dependent on whether the reaction is endothermic or exothermic. Please correct me if I'm wrong.

An exothermic rxn will release heat to the environment when the reaction proceeds. If you decrease the temperature, it would be more favorable that the rxn proceeds to the right(the equilibrium itself shifts to the right), and therefore the Keq will be increased. If you increase the temp, the system will not favor the products. The equilibrium will try to shift left. Keq will become smaller since it's Keq=[products]/[reactants].

An endothermic rxn will be the opposite way. Since the rxn requires heat to be given into the system, if you increase the temperature(of the environment), the Keq will become larger b/c the products are favored(opposite with the decrease in temp situation).

Becareful that Keq will ONLY be affected by temperature. Other factors CANNOT affect the Keq.

One more thing is that k the rate constant always become larger when you increase the temperature, regardless of what type of rxn you are having, b/c increasing temp leads to increase in collision of the molecules.

hope that helps.