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The mixture of Xe and Kr above, with gas constant R=483.6 ft∙lbf/(slug∙R), is at a temperature...

The mixture of Xe and Kr above, with gas constant R=483.6 ft∙lbf/(slug∙R), is at a temperature of T=60oF and an absolute pressure P=15atm. Assume that the ideal gas law may be applied in your analysis. What is the mass density in slug/ft3? Ans. 0.00842 slug/ft3.

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