Decreasing pressure by increasing volume [ENDORSED]

[Tyler Angtuaco 1G]

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]

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]

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

[Rory Simpson 2F]

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]

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.