Question

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)

Answer 1

0.0625

Step-by-step 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