Write an equation for the formation of one mole of NO2(g) from its elements in their standard states. Express your answer as a chemical equation using fractional coefficients as needed. Identify all of the phases in your answer.

The equation for the formation of one mole of nitrogen dioxide is

Explanation:

Synthesis reaction is defined as the reaction in which smaller substances combine in their elemental state to form a larger substance.

Nitrogen dioxide is formed by the combination of nitrogen and oxygen gas.

The chemical equation for the synthesis of nitrogen dioxide follows:

By Stoichiometry of the reaction:

Half moles of gaseous nitrogen gas reacts with 1 mole of gaseous oxygen gas to form 1 mole of gaseous nitrogen dioxide.

Hence, the equation for the formation of one mole of nitrogen dioxide is