Essential Chemistry for IGCSE - Chemical Reactions (Section 3 - No. 9)
In the reaction: 2NO(g) + O2(g) ⇌ 2NO2(g), the equilibrium shifts to the right if:
The concentration of NO is decreased.
The concentration of O2 is decreased.
The concentration of NO2 is increased.
The pressure is increased.
Explanation
Increasing the pressure favors the direction with fewer moles of gas, so the equilibrium will shift to the right.
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