Increase in Pressure

[austin-3b]

For increases in pressure (decreases in volume), the reaction goes toward the side with less moles. When finding out which side has the least amount of moles, do you also include aqueous solutions or only gases?

[Megan Chan 3A]

This only applies to reactions with gases, so I don't believe there would be any problems involving a change in pressure with aqueous solutions.

[Laura 3l]

I believe this only applies to gases.

[Sheryl Ocampo 1D]

I'm pretty sure you only consider moles of gases

[Tracey Huynh 2F]

Like the others have said, changes in pressure that affect volume only applies to gases since changes in pressure don't have an impact/affect liquids or solids, so aqueous species would also be unaffected since they're not gases, but rather a chemical species that has been dissolved in water. A question that shows this as an example is 5.61 in the textbook. Hope this helps!

[Malakai Espinosa 3E]

Pressure only applies to molecules in the gas phase.

[Vanessa Perez]

Pressure is a measurement to describe gases, therefore only consider moles of gases

[Katie Nye 2F]

Pressure with a change in volume will always only be applicable to gases. In order to use Le Chatelier's principle that it will balance out pressure, the substances need to be gaseous.

[Serena Song 1A]

Pressure only applies to gases, especially in the context of volume changing. The volume of aqueous solutions can't change, but the volume of gases can.

[Joseph Hsing 2C]

Pressure is associated with gasses, and something can only have a concentration if it is dissolved in a solvent.

[Kelly Tran 1J]

Increasing pressure (by decreasing volume) only applies to gases because for liquids and solids, changing the pressure does not change the volume. Therefore, you would only consider the moles of gases.

[Akriti Ratti 1H]

Hi! Pressure is only applicable to gases so that's all you'd consider.

[Lorraine Jiang 2C]

Hi! I believe increasing/decreasing pressure in a reaction system only has an effect on gases.

Hope it helps!

[Tiao Tan 3C]

This only applies to gases. Liquid pressure has very little association with volume.

[Danielle DIS2L]

you would only consider the moles of gases, not the liquid and solids

[rhettfarmer-3H]

It only applies to gasses so don't worry about in another context. Also, it follows the least moles. One of the crazier ideas is if the moles are the same is that there is no direct change rather it just decrease equally.

[Chudi Onyedika 3A]

Changing the pressure would only affect gases.

[Pranav Daggubati 3C]

In these problems, you don't consider anything in a non-gaseous state because it doesn't affect the gas pressure of the system.

[Scot Widjaja Dis 1J]

Only moles of gases

[Presley Gao 2C]

When finding out which side has the least amount of moles, you only include gases, but not aqueous solutions.

[Bella Bursulaya 3G]

Gases because they are the only ones that have partial pressures. Aqueous, liquids, and solids do not have partial pressures so increasing the system's pressure won't do anything to them or their concentrations.

[josephspindler2H]

I believe this would only be for gases rather than aqueous substances. Changing the pressure would only affect the moles of gas.

[jasmineculilap_3F]

Changing pressure only affects gases, so you don't include aqueous.

[Maddie Turk Disc 2J]

So how do you calculate which side has the greater number of moles?

[Gustavo_Chavez_1K]

This would only apply to gases, not liquids

[Mingzi Yang 1E]

Changes in pressure affect reactions with gases.

[Kiana Tashakori 1D]

You don't include aqueous solutions because pressure changes only apply to/change gasses.

[haley f]

You would only need to consider the gases! He mentioned in class that we can't really give enough pressure to change the volume of solids and liquids in this course so we don't consider it!

[Bryan Le 2K]

When looking at changes in pressures in relation to the chemical reaction, you would like at the moles of the gases only.

[Britney Tran IJ]

pressure changes applies to gases

[AlbertGu_2C]

You would only count gases, and there should not be any questions with this in it if it has other things that are not gases

[Ariel Guan 1H]

you should only consider gases for pressure changes.