Adding a Liquid or Solid to an Equation

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Dayna Pham 1I
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Adding a Liquid or Solid to an Equation

Postby Dayna Pham 1I » Wed Jan 23, 2019 8:54 pm

Does adding a liquid or solid to a system evoke a shift to restore equilibrium? I thought it wouldn't, especially if you add more of the solvent, since there is already so much of it. However, the Post-Test contradicts my thoughts, help?

See the attached picture for what I'm talking about.
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Anushi Patel 1J
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Re: Adding a Liquid or Solid to an Equation

Postby Anushi Patel 1J » Wed Jan 23, 2019 9:06 pm

I think in this case, we treat water as a reactant, and not just a solvent. In the photosynthesis reaction, the water is split to provide electrons for the electron transport chain, so increasing the amount of water will affect the equilibrium.

Mona Lee 4L
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Re: Adding a Liquid or Solid to an Equation

Postby Mona Lee 4L » Wed Jan 23, 2019 9:51 pm

This question was previously answered here: viewtopic.php?f=51&t=40454.

Essentially, because water is a liquid it is not included in the equilibrium expression. However, the addition of water will decrease the concentration of C6H12O6, thereby causing the reaction to shift to the right and increase the concentration of C6H12O6.


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