Problem: Consider this reaction, carried out at constant volume:  2SO2(g) + O2(g)    2SO3(g)          ∆H=  –198kJ The concentration of oxygen gas at equilibrium increases if: A. SO2 is added to the system.B. SO3 is added to the systemC. The temperature of the system is lowered.D. A minimal amount of inert gas is added to the system

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Problem Details

Consider this reaction, carried out at constant volume:  

2SO2(g) + O2(g)    2SO3(g)          ∆H=  –198kJ

The concentration of oxygen gas at equilibrium increases if:

A. SO2 is added to the system.

B. SO3 is added to the system

C. The temperature of the system is lowered.

D. A minimal amount of inert gas is added to the system

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