Liquid water and its vapor are sealed in a flask at 25 °C

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

Problem

Liquid water and its vapor are sealed in a flask at 25 °C. After several hours, droplets continue to form and fall on the walls, yet the measured mass of the liquid phase and the total pressure inside the flask both remain constant. Explain whether the system has reached equilibrium and cite the evidence that supports your conclusion.

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