Callen H.B - Thermodynamics And An Introduction To Thermostatistics · Problem 1.3-4

THE PROBLEM AND THE POSTULATES

Physics — Statistical Mechanics · mole-fractions-isotopes

Problem

A 0.01 kg sample is composed of 50 molecular percent H2\text{H}_2, 30 molecular percent HD (hydrogen deuteride), and 20 molecular percent D2\text{D}_2. What additional mass of D2\text{D}_2 must be added if the mole fraction of D2\text{D}_2 in the final mixture is to be 0.3?

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