What is the fraction of a gas in a system at partial pressure 1 mm Hg, if the 0.2 fraction of the same gas is at partial pressure 2 mm Hg and 0.3 fraction at partial pressure 3 mm Hg (Use Freundlich Isotherm)?

What is the fraction of a gas in a system at partial pressure 1 mm Hg, if the 0.2 fraction of the same gas is at partial pressure 2 mm Hg and 0.3 fraction at partial pressure 3 mm Hg (Use Freundlich Isotherm)? Correct Answer 0.1

y1/y2 = (p1/p2)n, => 0.2/0.3 = (2/3)n => n = 1, => 0.2 = k*21 = k = 0.1, => y = 0.1*11 = 0.1.

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