K and Q

Moderators: Chem_Mod, Chem_Admin

KarineKim2L
Posts: 100
Joined: Fri Aug 30, 2019 12:16 am

K and Q

Postby KarineKim2L » Sun Jan 12, 2020 9:00 am

Why are solids and liquids not included in the calculation of Q and K?

Jessica Li 4F
Posts: 115
Joined: Fri Aug 09, 2019 12:16 am

Re: K and Q

Postby Jessica Li 4F » Sun Jan 12, 2020 9:58 am

The concentrations of solids and liquids don't change much compared to those of aqueous solutions and gases, so they are negligible/cancel out as 1 basically.

Labiba Sardar 2A
Posts: 103
Joined: Sat Jul 20, 2019 12:15 am

Re: K and Q

Postby Labiba Sardar 2A » Sun Jan 12, 2020 10:02 am

It's because the concentration of solids and liquids don't change since they are pure substances, so they don't affect the value of K.

rabiasumar2E
Posts: 108
Joined: Thu Jul 11, 2019 12:15 am

Re: K and Q

Postby rabiasumar2E » Sun Jan 12, 2020 10:46 am

Because they don't change the value of K in any way, so you can disregard them while writing the K or Q expression.


Return to “Equilibrium Constants & Calculating Concentrations”

Who is online

Users browsing this forum: No registered users and 3 guests