In an experiment, 0.020 mol NO₂ was introduced into a flask of volume 1.00 L and the reaction 2 NO₂(g) ⇌ N₂O₄(g) was allowed to come to equilibrium at 298 K.

(a) Using information in Table 5E.1, calculate the equilibrium concentrations of the two gases.

(b) The volume of the flask is reduced to half its original value. Calculate the new equilibrium concentrations of the gases.

Transcribed Image Text:

TABLE 5E.1 Relations Between Mole Fraction, Molarity, and Molality* Conversion Expression 1solute bm golvent amount of solute present from molality mass of solute present from molality molality from mole fraction msolute mole fraction from molality molality from molarity molarity from molality b = Xsolute b = bm solvent Msolute Xsolute (1 - Xolute) Msolvent bMsolvent C= = 1 + bMsolvent C d - cMsolute bd 1 + b Msolute