Changes in K

Moderators: Chem_Mod, Chem_Admin

veneziaramirez 3I
Posts: 57
Joined: Fri Sep 29, 2017 7:07 am

Changes in K

Postby veneziaramirez 3I » Thu Nov 30, 2017 1:26 am

So the only thing that changes equilibrium is temperature? If a reactant is removed, the equilibrium would not change? Removing it would only change Q?

Rachel Lu_dis1H
Posts: 66
Joined: Fri Sep 29, 2017 7:06 am
Been upvoted: 1 time

Re: Changes in K

Postby Rachel Lu_dis1H » Thu Nov 30, 2017 9:16 am

Yes. K is the equilibrium constant (or reaction quotient at equilibrium) which is unaffected by changes in concentration. Q is the reaction quotient at anytime.

Vasiliki G Dis1C
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

Re: Changes in K

Postby Vasiliki G Dis1C » Thu Nov 30, 2017 1:03 pm

The equilibrium constant is also unaffected by changes in pressure. As a rule, changes in concentration and pressure do not affect K, and changes in temperature do affect K. If the reaction is endothermic, production formation is favored, and if the reaction is exothermic, reactant formation is favored.

Phillip Winters 2F
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

Re: Changes in K

Postby Phillip Winters 2F » Thu Nov 30, 2017 2:48 pm

K is a constant, so if concentrations of molecules in the reaction are changed, the reaction quotient eventually go back to whatever K was, unless temperature is changed as well

Sarah Rutzick 1L
Posts: 50
Joined: Tue Oct 10, 2017 7:13 am

Re: Changes in K

Postby Sarah Rutzick 1L » Fri Dec 01, 2017 10:24 am

There is a temperature associated with every K value, which is what allows us to use the K value for all reactions at a given temperature. But, when the temperature changes, we must use the K value associated with that new temperature.

Return to “Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions”

Who is online

Users browsing this forum: No registered users and 1 guest