Q of eqn  [ENDORSED]

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Samira 2B
Posts: 38
Joined: Fri Sep 29, 2017 7:05 am

Q of eqn

Postby Samira 2B » Sat Feb 24, 2018 4:38 pm

Why can you include concentration and partial pressure when calculating the Q of a rxn?

Connor Kelligrew 2D
Posts: 39
Joined: Fri Sep 29, 2017 7:07 am

Re: Q of eqn

Postby Connor Kelligrew 2D » Sat Feb 24, 2018 4:46 pm

As long as the reactants and products are not in the liquid or solid state, their concentrations and/or pressures affect the reaction quotient, Q, and the direction the reaction will proceed in to reach equilibrium.

Both pressure and concentration can be included in the formula for the reaction quotient without issue because Q has no units.

Shawn Patel 1I
Posts: 54
Joined: Thu Jul 27, 2017 3:01 am

Re: Q of eqn  [ENDORSED]

Postby Shawn Patel 1I » Sat Feb 24, 2018 8:16 pm

If you can recall from last year, Q can be calculated from both partial pressures and the concentrations of aqueous solutions. Because Q doesn't have any units, partial pressures and concentrations can be combined.

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