When referring to the compression of a mixture, would Le Chatelier's Principle state that there would be a difference in partial pressures (and equilibrium) when the molecules themselves have different chemical structures? For example, if one molecule has a more compounded or compact structure than the other. Would this change be negligible?
*due to computer/internet difficulties this post is tardy
Compressing a RXN mixture
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Re: Compressing a RXN mixture
Compression of a reaction refers to reducing the volume of the reaction. Therefore, we use Le Chatelier's Principles on volume to determine which side of the reaction is favored. If volume is decreased or the reaction is compressed, the reaction shifts towards the side of the reaction with the least number moles. The principle also states that if volume is increased, the reaction shifts towards the side of the reaction with the greatest number of moles. Remember solids and liquids are NOT counted in the total number of moles on each side of the reaction.
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Re: Compressing a RXN mixture
As long as the molecules are in the same phase, the structure should not matter.
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Re: Compressing a RXN mixture
No I think the only thing that would be significantly affected is that the side that had less moles would be where the reaction is shifting.
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Re: Compressing a RXN mixture
Yes, agreeing with what others have said, the structure does not have an impact on the overall shift of the reaction.
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Re: Compressing a RXN mixture
If I remember correctly as well, the shift is not permanent, and doesn't change the equilibrium constant. The only thing that changes the equilibrium constant is temperature.
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Re: Compressing a RXN mixture
No, Le Chatelier's Principle is a general principle that applies to any chemical reaction, regardless of the specific chemical structures involved.
Le Chatelier's Principle states that a system at equilibrium will respond to any stress or change in conditions by shifting its equilibrium position in a way that partially counteracts the stress or change. For example, if the pressure is increased in a reaction that involves gases, the system will shift to the side with fewer moles of gas in order to relieve the pressure.
The specific chemical structures of the molecules involved in a reaction may affect the equilibrium position and the direction of the shift, but they do not affect the application of Le Chatelier's Principle itself.
Le Chatelier's Principle states that a system at equilibrium will respond to any stress or change in conditions by shifting its equilibrium position in a way that partially counteracts the stress or change. For example, if the pressure is increased in a reaction that involves gases, the system will shift to the side with fewer moles of gas in order to relieve the pressure.
The specific chemical structures of the molecules involved in a reaction may affect the equilibrium position and the direction of the shift, but they do not affect the application of Le Chatelier's Principle itself.
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