Reaction Quotient and Equilibrium Shift

Question

The reaction $$2SO_2(g) + O_2(g) ightleftharpoons 2SO_3(g)$$ has an equilibrium constant of $$K_c = 2.8 	imes 10^4$$ at 500 K. A reaction mixture is prepared with the following concentrations: $$[SO_2] = 0.020\ 	ext{M}$$, $$[O_2] = 0.010\ 	ext{M}$$, and $$[SO_3] = 0.045\ 	ext{M}$$. Based on these values, what is the reaction quotient, $$Q_c$$, and in which direction will the reaction shift to reach equilibrium?

Accepted Answer

Q = 5.1 × 10^2; reaction proceeds forward

Answer

Q = 1.0 × 10^4; reaction proceeds forward

Answer

Q = 1.0 × 10^4; reaction proceeds backward

Answer

Q = 2.0 × 10^4; reaction proceeds backward

Reaction Quotient and Equilibrium Shift

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