A mixture of noble gases (helium, argon, krypton, and xenon) is at a total pressure of (150
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A mixture of noble gases (helium, argon, krypton, and xenon) is at a total pressure of \(150 \mathrm{kPa}\) and a temperature of \(500 \mathrm{~K}\). If the mixture has equal mole fractions of each of the gases, determine:
(a) The composition of the mixture in terms of mass fractions.
(b) The average molecular weight of the mixture.
(c) The total molar concentration.
(d) The mass density.
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