predicting effects

[Katherine Wu 1H]

The two air pollutants SO2 and NO2 can react in the atmosphere as follows:
SO2 (g) + NO2 (g) ⇌ SO3 (g) + NO (g)
Predict the effect of the following changes to the amount of NO when the reaction above has come to equilibrium in a stainless steel bulb equipped with entrants for chemicals.
i. the amount of NO2 is increased
ii. the SO3 is removed by condensation
iii. the pressure is tripled by pumping in helium

the answer given was: i. increase in NO, ii. increase in NO, iii. no effect on NO
I'm confused as to why the removal of SO3 would result in an increase in NO (in ii.)?

[Diana_Diep2I]

I think because it's on the products side, removing one of the products would increase the production of both compounds (NO and SO3)?

[Amanda Lin 2I]

Removing some of the product will cause the reaction to make more product in order to reach equilibrium again.

[Tahlia Mullins]

Removing some product would in turn lead to the reaction proceeding to the right and more products being formed.

[CynthiaLy4F]

Removing SO3 would result in an increase of NO because the reaction will try to make more product to minimize the effect of that change.

[ABombino_2J]

Removing SO3 will lead to increase in not only NO but also SO3 because when the products are removed the reactants are favored, which means the reaction must shift to the left to once again reach equilibrium to accommodate for the higher concentration of the reactants.

[Noe BM 1J]

The way I think about it is that if you remove SO3, NO will increase because it has to make up for the SO3 that's being removed in order for the reaction to be at equilibrium.

[Alondra]

The amount of NO2 is increased because the system will try to reach equilibrium. After removing one product there is essentially more reactants than products, which I beleive causes the forward reaction to be favored.

[saigorijavolu2k]

Removing a product will cause the product concentration to increase because the reaction goes in the forward direction to make up for this product removal

[ramiro_romero]

You wrote the question for ii wrong. The question asks what will happen to the amount of NO2 if SO2 is removed by condensation (both these compounds are products of the rxn). Removing SO2 requires the rxn to move forward (favoring and producing further product) to return to equilibrium.