Question

A student ran the following reaction in the laboratory at 768 K:

N2(g) + 3H2(g) 2NH3(g)

When she introduced 3.37×10-2 moles of N2(g) and 6.54×10-2 moles of H2(g) into a 1.00 liter container, she found the equilibrium concentration of H2(g) to be 6.43×10-2 M.

Calculate the equilibrium constant, Kc, she obtained for this reaction.

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