The value of Keq for the following reaction is 0.25: SO2 (g) + NO2 (g) É SO3 (g) + NO (g) What is the value of Keq at the same temperature for the reaction below? 2SO2 (g) + 2NO2 (g) É 2SO3 (g) + 2NO (g)

0.0625

Explanation:

The expression of the first reaction;

SO2 (g) + NO2 (g) - -> SO3 (g) + NO (g)

Keq = [SO3] [NO] / ([SO2] [NO2])

The expression of the second reaction;

2SO2 (g) + 2NO2 (g) - -> 2SO3 (g) + 2NO (g)

Keq = [SO3]² [NO]² / ([SO2]² [NO2]²)

Keq (Second) = Keq (first) ²

Keq (Second) = 0.25² = 0.0625