A flask at constant temperature contains 3 N O molecules and 12 NO molecules for the…

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

A 2.0 L2.0\,\text{L} flask at constant temperature contains 3 N2_2O4_4 molecules and 12 NO2_2 molecules for the equilibrium N2O4(g)  ⇌  2 NO2(g)\text{N}_2\text{O}_4(g)\;\rightleftharpoons\;2\text{ NO}_2(g) Using the particle counts as proportional to concentration, determine the numerical value of QcQ_c.

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