Sits vs shifts left/right

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Michele Shi 1K
Posts: 33
Joined: Thu Jul 27, 2017 3:00 am

Sits vs shifts left/right

Postby Michele Shi 1K » Sat Dec 09, 2017 11:06 am

Does "the reaction sits to the left" and "the reaction shifts left" mean the same thing? I know that shifting left means the reverse reaction is favored.

Kyra Dingle 1B
Posts: 55
Joined: Fri Sep 29, 2017 7:04 am

Re: Sits vs shifts left/right

Postby Kyra Dingle 1B » Sat Dec 09, 2017 11:29 am

I believe the term "sits to the left" means there are more reactants at equilibrium, which can be seen through determining if K is small (K<10^-3). The term "sits to the right" then refers to a larger amount of products, which can be seen through determining that K is large (K> 10^-3). The term "shifts left/right" is used when comparing the reaction quotient (Q) to the equilibrium constant (K) or when describing the response of an equilibria to a change in concentration, pressure, etc.

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