Sulfur trioxide is used in the industrial production of sulfuric acid. The industrial and natural conversion of sulfur dioxide to sulfur trioxide can be represented by the following reaction:
2SO2 (g) +O2 (g) equilibrium arrow 2SO3 (g) ?H = -198 kJ mol-1
Write down the equilibrium expression for the conversion for sulfur dioxide into sulfur trioxide as given in Reaction 1 and rearrange this expression to give it in the form of an equation for straight line.