Kp vs Kc usage
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Kp vs Kc usage
how do we know when a problem wants us to use Kp versus when we should use Kc? thanks!
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Re: Kp vs Kc usage
I think if the problem is dealing with gases, or it gives partial pressures, then you should use Kp, and if it's talking about concentrations then use Kc.
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Re: Kp vs Kc usage
If it's talking about gases used Kp for partial pressure. If it's talking about aqueous solutions use Kc for concentration.
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Re: Kp vs Kc usage
In many cases, the question will ask to find Kc or Kp.The question may also give you partial pressures, so you would know you would need to find Kp and if it gives you concentration, you'll know you need to find the Kc. If you're in doubt, I think it should be fine if you simply write K.
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Re: Kp vs Kc usage
Kp is used for partial pressure and (bar) while Kc is used for concentration with mol/L.
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Re: Kp vs Kc usage
Kp is used when the products and reactants are in the gaseous phase. Kc is used when the products and reactants are in the aqueous phase, so they have a concentration.
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