Decreasing pressure by increasing volume  [ENDORSED]

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Tyler Angtuaco 1G
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Joined: Wed Sep 11, 2019 12:16 am

Decreasing pressure by increasing volume

Postby Tyler Angtuaco 1G » Sat Jan 11, 2020 2:03 pm

Dr. Lavelle established that increasing the pressure by decreasing volume results in the production of more products if there is more moles of gas on reactant side and more reactants if there are more moles of gas on product side. Will these trends be the same if we decrease pressure, such as if we were to expand the container of gas without adding more gas?

Brittney Hun 2C
Posts: 104
Joined: Wed Sep 11, 2019 12:15 am

Re: Decreasing pressure by increasing volume  [ENDORSED]

Postby Brittney Hun 2C » Sat Jan 11, 2020 2:07 pm

I believe the trends are the same, just in the opposite direction. So the reaction will shift to the side that has less moles.

Lara Kristine Bacasen 1L
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Re: Decreasing pressure by increasing volume

Postby Lara Kristine Bacasen 1L » Sat Jan 11, 2020 2:16 pm

I believe you're correct considering it's the inverse. Just look at the ideal gas law PV = nRT

Rory Simpson 2F
Posts: 106
Joined: Fri Aug 09, 2019 12:17 am

Re: Decreasing pressure by increasing volume

Postby Rory Simpson 2F » Sat Jan 11, 2020 3:20 pm

Decreasing the pressure would cause the reaction to shift towards whichever side has more moles. Because of the pressure decrease and the volume increase, the concentrations would decrease resulting in the shift.

305385703
Posts: 102
Joined: Thu Jul 11, 2019 12:15 am

Re: Decreasing pressure by increasing volume

Postby 305385703 » Sat Jan 11, 2020 3:48 pm

There will be the same effect on the equilibrium in the opposite direction. Decreasing the pressure (by increasing the volume) will push the equilibrium in the direction of the side with more moles of gas.


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