A Mixture of Xe,Kr,and Ar Has a Total Pressure of 6.69

question 171

Multiple Choice

A mixture of Xe,Kr,and Ar has a total pressure of 6.69 atm.What is the mole fraction of Kr if the partial pressures of Xe and Ar are 1.92 atm and 2.75 atm,respectively.

• A)0.302
• B)0.287
• C)0.411
• D)0.259
• E)0.698

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Definitions:

Thalamus

A structure in the brain that acts as a relay station for information between the sensory organs and the cerebral cortex.

Hypothalamus

A region of the brain responsible for hormone production and regulation of critical bodily functions like temperature and hunger.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions such as fear and pleasure, as well as instincts and mood control.

Medulla

The inner region of an organ or tissue, or specifically, the lower part of the brainstem which is involved in regulating vital body functions such as heart rate and breathing.